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Strut Systems SS-18
Strut systems
At Eaton, we believe that power is a fundamental part
of just about everything people do. That’s why we’re
dedicated to helping our customers find new ways to
manage electrical, hydraulic and mechanical power
more efficiently, safely and sustainably. To improve
people’s lives, the communities where we live and
work, and the planet our future generations depend
upon. Because this what really matters. And we’re here
to make sure it works.
To learn more go to: Eaton.com/whatmatters
We make what matters work.
We make what matters work.*
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Table of Contents
For additional information on Tolco™ brand part numbers beginning with Fig., visit www.cooperbline.com/tolco.
NOTICE
Eaton’s B-Line Division reserves the right to change the specifications, materials, equipment, prices or the
availability of products at any time without prior notice. While every effort has been made to assure the
accuracy of information contained in this catalog at the time of publication, we are not responsible for
inaccuracies resulting from undetected errors or omissions.
Eaton is a leading manufacturer and fabricator of steel and aluminum B-Line series products which are used in
support of equipment for industrial, commercial, utility, and OEM installations. We are proud of the exacting
standards of research, design, engineering, and manufacturing that go into each and every product that
comprise our strut product line. Our customers have access to one of the most complete support systems
offered in the industry, including metal framing, cable tray, pipe hangers, slotted angle, and fasteners.
Many of our products are listed by the Underwriter’s Laboratories, Inc. All of our strut system products are
manufactured to meet or exceed Metal Framing Manufacturers Association (MFMA) and other industry
standards set for their design and manufacture.
Eaton’s B-Line Division
509 West Monroe Street
Highland, Illinois 62249-0326
Phone: 800-851-7415
www.eaton.com/blineseries Metal Framing Manufacturers Association
Introduction .................................................................................................................................................................... 4 - 5
Technical Data
Materials & Finishes .............................................................................................................................................. 6 - 8
Welding & Corrosion ........................................................................................................................................... 9 - 11
Design of Strut Systems & Recommended Specification ............................................... 12 - 15
4Dimension™ Strut
Information ....................................................................................................................................................................... 16
CoSPEC™ Specifier Center .....................................................................................................................................17
4Dimension Applications ............................................................................................................................... 18 - 19
4Dimension Channels Specifications & Selection Charts ........................................................ 20 - 21
4D22 Channel Section Properties & Load Charts ......................................................................... 22 - 25
4D21 Channel Section Properties & Load Charts ......................................................................... 26 - 29
Accessories
Dove-Tail Bars ................................................................................................................................................................. 30
Dual Dove-Tail Nut, Back-To-Back Snap On Clamp ............................................................................... 31
Channel Nut Selection Guide ................................................................................................................................ 32
Dove-Tail Twirl-Nut™, Dove-Tail Slide-In Nut ............................................................................................. 33
Wire Wing Channel Nut, Dove-Tail Combo Nut Washer .................................................................... 34
Combo Nut Washer, Spring Nut ......................................................................................................................... 35
Spring Nut w/o Spring, Twirl-Nut™ ................................................................................................................... 36
Universal Pipe Clamps .................................................................................................................................... 37 - 39
Flip Clip™ Trapeze Hanger ...................................................................................................................................... 40
2-Piece Turn & Lock Trapeze Hanger .............................................................................................................. 41
2-Piece Strengthening Clamp ............................................................................................................................... 42
Post Bases for 4D22 & 4D21 ............................................................................................................................... 43
Universal Beam Clamps ................................................................................................................................. 44 - 45
End Caps ............................................................................................................................................................................ 45
4Dimension Photos ..................................................................................................................................................... 46
Hydraulic Cutter (also compatible with several traditional strut profiles) ................................................... 47
1 B-Line series strut systems Eaton
Channel & Combinations
Info. & Specifications & Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 - 49
B11 Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 - 51
B12 Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 - 53
B22, B24, B26 Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 - 61
B32 Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 - 63
B42 Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 - 65
B52, B54, B56 Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 - 71
Telescoping Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 - 73
Channel Hole Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 - 76
Channel Closure Strips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Channel Nuts & Hardware
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Channel Nuts Selection Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 - 83
Channel Nuts Slip & Pull-out Load Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 - 85
Other Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 - 92
KwikWire™ & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 - 104
Strut Fittings
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Flat Plate Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 - 109
90° Angle Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 - 115
Angular Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 - 118
Miscellaneous Seismic Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 - 125
Braces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Clevis Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
U-Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 - 131
Z-Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 - 134
Wing Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 - 137
Post Bases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 - 139
Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 - 147
Miscellaneous Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 - 153
Beam Clamps & Accessories
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Beam Clamps & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 - 167
Pipe/Conduit Clamps & Hangers
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Pipe Clamps & Vibra Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 - 179
Armafix™ Clamps & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Vibra Cushions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Pipe Clamps, Hangers, & Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 - 189
Pipe Block & Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 - 195
DURA-BLOK™ Rooftop Supports
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Base Support - With & Without Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Base Support - Pipe/Tubing Riser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Base Support Riser - Channel & Pipe Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Base Support - ‘H’ Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 - 201
Base Support - Pipe Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Application & Roof-Top Walkway Photos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 - 205
Table of Contents
B-Line series strut systems 2 Eaton
Table of Contents
For additional information on Tolco™ brand part numbers beginning with Fig., visit www.cooperbline.com/tolco.
206Electrical Accessories
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Selection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Fluorescent Fixture Hangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 - 210
Electrical Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 - 212
Junction Boxes & Strut Joiners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 - 215
Electrical Hardware & Porcelain Saddles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Insulclamp™ Cable Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Aluminum & Stainless Steel Materials
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Aluminum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219 - 221
Stainless Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 - 223
Fiberglass Materials
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 - 225
Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 - 229
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 - 231
Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232 - 241
Mini Channel & Fittings
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Mini Channels & Channel Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 - 245
Mini Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 - 253
Concrete Inserts
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 - 255
Continuous Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 - 258
Spot Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Insert Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Anchors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261 - 269
Slotted Angle
Info. & Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Slotted Angle Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Slotted Angle Loading Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272 - 274
Slotted Angle Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Reference Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276 - 285
Tolco to B-Line Cross . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286 - 289
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290 - 298
Strut Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 - 304
3 B-Line series strut systems Eaton
Our strut support system is designed with many time-saving features. They are fully adjustable and
reusable, with a complete line of channels, fittings and accessories for multi-purpose applications.
• No Welding
• No Drilling
• Use Your Imagination
The strut system installs quickly, with no need for
special tools. All you need is a wrench and hacksaw.
Channels and parts can be taken apart for reuse
as quickly as they were assembled, yet help provide
the strength of welded construction. This eliminates
welding and drilling which can have substantial
savings in time and labor.
1. Channel nut may be inserted anywhere
along continuous slot. Designed for easy
insertion and self-alignment.
2. A 90° turn aligns channel nut grooves
with inturned lips of the channel.
3. Position fitting over channel nut and
insert bolt to start any connection.
4. With the twist of a wrench, channel
nut locks its teeth firmly against
inturned lips.
Introduction
Introduction
B-Line series strut systems 4 Eaton
Our strut system provides an economical
solution for electrical, mechanical and industrial
supports with an unlimited variety of applications
in the construction industry.
Electrical Applications
• Lighting Fixture Supports
• Raceway Systems
• Trapeze Hangers
• Pipe & Conduit Supports
• Cable Tray Supports
• Beam Adjustments
Mechanical Applications
• Piping Racks
• Tunnel Pipe Stanchions
• Concrete Inserts
• Beam Attachments
• Pipe Risers
Industrial Applications
• Racks and Shelving
• Partitions
• Production Line Supports
• Trolley Systems
• Wall Framing
Introduction
Introduction
5 B-Line series strut systems Eaton
Materials
Carbon Steel
Channels made from high-quality carbon
steel are continuously roll formed to
precise dimensions. By cold working the
steel mechanical properties are increased,
allowing lightweight structures to carry the
required load. Corrosion resistance of
carbon steel varies widely with coating and
alloy. See “Finishes” for more detailed
information.
Stainless Steel
Stainless steel channel is available in AISI
Type 304 or 316 material. Both are
non-magnetic and belong to the austenitic
stainless steels group, based on alloy
content and crystallographic structure. Like
carbon steel, stainless steel exhibits
increased strength when cold worked by
roll-forming.
Several conditions make the use of
stainless steel ideal. These include
reducing long term maintenance costs,
high ambient temperatures, appearance,
and stable structural properties such as
yield strength, and high creep strength.
Type 304 resists most organic chemicals,
dyestuffs and a wide variety of inorganic
chemicals at elevated or cryogenic
temperatures. Type 316 contains slightly
more nickel and adds molybdenum to give
it better corrosion resistance in chloride
and sulfuric acid environments. For more
information concerning the differences
between types 304 and 316, visit
www.bline.com.
Aluminum
Standard aluminum channel is extruded
from aluminum alloy 6063-T6. Strut fittings
are made from aluminum alloy 5052-H32.
The high strength to weight ratio of
channel made of aluminum helps greatly
reduce the overall cost of installation
through ease of handling and field cutting.
Aluminum owes its excellent corrosion
resistance to its ability to form an
aluminum oxide film that immediately
reforms when scratched or cut. In most
outdoor applications, aluminum has
excellent resistance to “weathering”.
The resistance to chemicals, indoor or
outdoor, can best be determined by tests
conducted by the user with exposure to
the specific conditions for which it is
intended. The corrosion resistance of
aluminum to some commonly known
chemicals is shown in the Corrosion
Chart on page 10. For further information,
contact us or the Aluminum Association.
Fiberglass
We offer two fire retardant (FR) resins for
strut systems, polyester and vinyl ester.
Both resins are ideal for corrosive
environments or nonconductive
applications with moderate strength
requirements. Some common types of
environments where Vinyl Ester Resins are
recommended, that Poly Esters are not,
are paper mills, most any metal plating
operation and any condition with
concentrated levels of Chlorine, [ Cl- ].
Please consult our fiberglass corrosion
resistance charts on page 184 for specific
chemical recommendation data.
Unlike other base materials depicted in
this catalog, fiberglass exhibits unique
physical property changes when operating
in elevated temperature conditions that are
a fraction of increase compared to steel or
aluminum. Thus, it is advised against using
fiberglass in temperatures greater than
200° F.
Please refer to the \"Corrosion Resistance
Guide\" on page 184 for specific
applications.
The fiberglass strut systems are
manufactured from glass fiber-reinforced
plastic shapes that meet ASTM E-84, Class
1 Flame Rating and self-extinguishing
requirements of ASTM D-635. A surface
veil is applied during pultrusion to insure a
resin-rich surface and ultraviolet resistance.
While polyester is sufficient for most uses,
vinyl ester is suitable for a broader range of
environments.
B-Line B22 SS6 87401A6
Eaton’s B-Line Series Steel Strut is stamped with:
Traceable to the steel’s origin
Material/Finish
Part number designation
Company Name
Technical Data
Technical Data
B-Line series strut systems 6 Eaton
Finishes
Zinc Coatings
Zinc protects steel in two ways. First it
protects the steel as a coating, and
second acts as a sacrificial anode to repair
bare areas such as cut edges, scratches,
and gouges. The corrosion protection of
zinc is directly related to its thickness and
the environment. This means a .2 mil
coating will last twice as long as a .1 mil
coating in the same environment.
Galvanizing also protects cut and drilled edges.
Electrogalvanized Zinc
Electrogalvanized Zinc (also known as zinc
plated or electroplated) is the process by
which a coating of zinc is deposited on
the steel by electrolysis from a bath of
zinc salts.
A rating of SC3, our standard, provides a
minimum zinc coating thickness of .5 mils
(excluding hardware, which is SC1 = .2
mils).
When exposed to air and moisture, zinc
forms a tough, adherent, protective film
consisting of a mixture of zinc oxides,
hydroxides, and carbonates. This film is
a barrier coating which helps slow
subsequent corrosive attack on the zinc.
This coating is usually recommended for
indoor use in relatively dry areas, as it
provides ninety-six hours protection in
salt spray testing per ASTM B117.
Chromium / Zinc
Chromium / Zinc is a corrosion resistant
composition, which was developed to
protect fasteners and small bulk items for
automotive use. The coating applications
have since been extended to larger parts
and other markets.
Chromium/Zinc composition is an
aqueous coating dispersion containing
chromium, proprietary organics, and zinc
flake.
This finish provides 720 hours protection
in salt spray testing per ASTM B117.
Pre-Galvanized Zinc
(Mill galvanized, hot dip mill galvanized
or continuous hot dip galvanized) Pregalvanized steel is produced by coating
coils of sheet steel with zinc by
continuously rolling the material through
molten zinc at the mills. This is also
known as mill galvanized or hot dip mill
galvanized. These coils are then slit to
size and fabricated by roll forming,
shearing, punching, or forming to produce
our pre-galvanized strut products.
The G90 specification calls for a coating
of .90 ounces of zinc per square foot of
steel. This results in a coating of .45
ounces per square foot on each side of
the sheet. This is important when
comparing this finish to hot dip
galvanized after fabrication.
During fabrication, cut edges and welded
areas are not normally zinc coated;
however, the zinc near the uncoated
metal becomes a sacrificial anode to
protect the bare areas after a short period
of time.
Hot Dip Galvanized After
Fabrication (Hot dip galvanized or
batch hot dip galvanized)
Hot dip galvanized strut products are
fabricated from steel and then completely
immersed in a bath of molten zinc. A
metallic bond occurs resulting in a zinc
coating that completely coats all surfaces,
including edges and welds.
Another advantage of this method is
coating thickness. Strut products that are
hot dip galvanized after fabrication have a
minimum thickness of 1.50 ounces per
square foot on each side, or a total 3.0
ounces per square foot of steel,
according to ASTM A123.
The zinc thickness is controlled by the
amount of time each part is immersed in
the molten zinc bath as well as the speed
at which it is removed. The term \"double
dipping\" refers to parts too large to fit into
the galvanizing kettle and must be dipped
one end at a time. It does not refer to
extra coating thickness.
The layer of zinc which bonds to steel
provides a dual protection against
corrosion. It protects first as an overall
barrier coating. If this coating happens
to be scratched or gouged, zinc's
secondary defense is called upon to
protect the steel by galvanic action.
Hot-Dip Galvanized After Fabrication is
recommended for prolonged outdoor
exposure and will usually protect steel for
20 years or more in most atmospheric
environments and in many industrial
environments. For best results, a zinc
rich paint (available from Eaton’s B-Line
Division) should be applied to field cuts.
The zinc rich paint will provide immediate
protection for these areas and eliminate
the short time period for galvanic action
to “heal” the damaged coating.
Anticipated Life of Zinc Coatings In Various Atmospheric Environments
Hot Dip Galvanized
Pre-Galvanized
= Zinc Coating 1.50 Oz./Ft.2 (.0026” Thick)
= Zinc Coating 0.45 Oz./Ft.2 (.00075” Thick)
Rural Tropical
Marine
Temperature
Marine
Highly
Industrial
Life
in
Years
Suburban
Environment
Urban
10
20
30
40
10
36
8
29
7
25
6
21
5
18
3
11
Zn
Fe
ZnFe
ZnO Technical Data
Technical Data
7 B-Line series strut systems Eaton
DURA GREEN™ and
DURA-COPPER™ Epoxy Coatings
DURA GREEN and DURA-COPPER epoxy
coatings are water borne epoxy coatings
applied to B-Line series products by a
precisely controlled cathodic electrodeposition process. This process is
accomplished using a conveyor to
transport channel and fittings through
several cleaning, phosphatizing and
application stages prior to being baked
(See diagram below).
This custom-designed paint system is
used for painting all channels, channel
combinations, slotted angle, and fittings.
Samples are selected on a routine basis
for salt spray (fog) testing to verify the
quality of the finish. These tests are
performed in accordance with ASTM B117
and evaluated and related according to
ASTM D1654 (Tables 1 & 2).
The DURA GREEN and DURA-COPPER
epoxy coatings have been tested and
listed by Underwriters Laboratories in
accordance with “Standard for Surface
Metal Raceway and Fittings, UL5” and
“Standard for Pipe Hanger Equipment for
Fire Protection Service, UL203”.
Due to DURA GREEN’s organically based
composition, it seats itself into porous
surfaces more completely and efficiently
than zinc coatings. As these porous
caverns are filled along the material profile,
the outer finished surface demonstrates an
increased smooth uniform plane which
produces considerably less off-gasing when
tested.
DURA GREEN channel meets or exceeds
100 level clean room standards. This was
confirmed by testing the channel in
accordance with Boeing (PCL) Standards,
which are more stringent and complete
than ASTM E595-93. DURA GREEN was
found to be a superior finish, due in part to
its proven application process.
Unscribed Scribed 1/8” (3.2) Creepage
Type of Finish 5% Failure (1) from Scribe (1)
DURA GREEN Epoxy 1000 Hours 312 Hours
Mill Galv. (Pre-Galv.) G90 192 Hours 288 Hours
Perma-Green 438 Hours 231 Hours
Zinc Chromate 36 Hours 96 Hours
Industry Green (Range) 10 to 36 Hours 4 to 30 Hours
Salt Spray Test Results
DURA GREEN / DURA-COPPER Epoxy Coating Process
Tank 1 Tank 2 Tank 3 Tank 4 Tank 5 Tank 6 Tank 7 Tank 8 Bake Oven
The channel A rinse is A phosphatized The material A pre-deionized The electro- The first The final rinse The curing
and parts are applied to sealer is applied moves through rinse prepares coating tank post rinse insures a process takes 20
thoroughly remove to insure clear water rinse the metal for the applies a removes any smooth, minutes at a
cleaned and insoluble salts corrosion to remove excess cathodic electro- uniform coat unelectrically nonblemish baking temperature
phosphatized. and unreacted resistance and phosphates. coating. of epoxy paint attracted surface. of 375° F (199° C).
phosphates. paint adhesion. to the entire solids.
surface.
(1) All salt spray (fog) tests conducted in accordance with ASTM B117 and evaluated and
rated according to ASTM D1654 Tables 1 & 2. Tests are performed and certified by an
independent testing laboratory.
Technical Data
Technical Data
B-Line series strut systems 8 Eaton
Welding
The welding procedures used in the
fabrication of our steel products are in
accordance with American Welding
Society (AWS) Standards. To help achieve
the highest quality in our manufacturing
processes, our welders follow standards
set by AWS Code.
Spot Welding
Spot welded back-to-back channel is
manufactured using a modern DC
powered resistance welder controlled
by a microprocessor. This produces a
series of spot welds with speed and
consistency.
Consistency is one of the most important
advantages in specifying back-to-back
channel. Variables such as weld
sequence, speed and duration are
carefully controlled and monitored by a
sophisticated electronic control system.
A statistical quality control program,
combining destructive and nondestructive testing, is used to help
ensure high quality welds.
MIG Welding
MIG welded, more properly called gas
metal arc welded (GMAW) combination
channels and fittings, are produced
when physical dimensions or certain
combinations require a weld process
other than automatic spot welding. The
same quality control requirements are
imposed on MIG welded and spotwelded products.
Quality Assurance
Our Quality Assurance Program has
been developed and implemented for
compliance with ISO9001:2008. We
also comply with various industry
standards and specifications. We have
extensive experience in suppling metal
framing components for the nuclear
power generating industry, and upon
request can provide products in
compliance with 10CFR50 Appendix B,
NQA-1 and 10CFR21. For more
information on our quality capability
please visit
www.cooperbline.com/nuclear.
Spot Weld MIG Weld
Technical Data
Technical Data
1/2” (12.7mm) spot welds every
4” (101.6mm) on center
3/4” (9.0mm) long MIG welds every
6” (152.4mm) on center
9 B-Line series strut systems Eaton
Corrosion
All metal surfaces are affected by
corrosion. Depending on the physical
properties of the metal and the
environment to which it is exposed,
chemical or electromechanical corrosion
may occur.
Atmospheric Corrosion
Atmospheric corrosion occurs when
metal is exposed to airborne liquids,
solids or gases. Some sources of
atmospheric corrosion are moisture, salt,
dirt and sulphuric acid. This form of
corrosion is typically more severe
outdoors, especially near marine
environments.
Chemical Corrosion
Chemical corrosion takes place when
metal comes in direct contact with a
corrosive solution. Some factors which
affect the severity of chemical corrosion
include: chemical concentration level,
duration of contact, frequency of
washing, and operating temperature.
Storage Corrosion
Wet storage stain (white rust) is caused
by the entrapment of moisture between
surfaces of closely packed and poorly
ventilated material for an extended
period. Wet storage stain is usually
superficial, having no affect on the
properties of the metal.
Light staining normally disappears with
weathering. Medium to heavy buildup
should be removed in order to allow the
formation of normal protective film.
Proper handling and storage will help to
assure stain-free material. If product
arrives wet, it should be unpacked and
dried before storage. Dry material should
be stored in a well ventilated “low
moisture” environment to avoid
condensation formation. Outdoor storage
is undesirable, and should be avoided
whenever possible.
Galvanic Corrosion
Galvanic corrosion occurs when two or
more dissimilar metals are in contact in
the presence of an electrolyte (i.e.:
moisture). An electrolytic cell is created
and the metals form an anode or a
cathode depending on their relative
position on the Galvanic Series Table.
The anodic material will be the one
to corrode. Anodic or cathodic
characteristics of two dissimilar metals
will depend on the type of each material.
For example: If zinc and steel are in
contact, the zinc acts as the anode and
will corrode; the steel acts as the
cathode, and will be protected. If steel
and copper are in contact, the steel is
now the anode and will corrode.
The rate at which galvanic corrosion
occurs depends on several factors:
1. The relative position on the Galvanic
Series Table - the further apart materials
are in the Galvanic Series Table, the
greater the potential for corrosion of the
anodic material.
Galvanic Series in Sea Water
Metals in descending order of activity in the presence of an electrolyte.
2. The amount and concentration of
electrolyte present - an indoor, dry
environment will have little or no galvanic
corrosion compared to a wet atmosphere.
3. The relative size of the materials - a
small amount of anodic material in
contact with a large cathodic material will
result in greater corrosion. Likewise, a
large anode in contact with a small
cathode will decrease the rate of attack.
Magnesium
Magnesium Alloys
Zinc
Beryllium
Aluminum - Zinc Alloys (7000 series)
Aluminum - Magnesium Alloys (5000 series)
Aluminum (1000 series)
Aluminum - Magnesium Alloys (3000 series)
Aluminum - Magnesium - Silicon Alloys (6000 series)
Cadmium
Aluminum - Copper Alloys (2000 series)
Cast Iron, Wrought Iron, Mild Steel
Austenitic Nickel Cast Iron
Type 410 Stainless Steel (active)
Type 316 Stainless Steel (active)
Type 304 Stainless Steel (active)
Naval Brass, Yellow Brass, Red Brass
Tin
Copper
Lead-Tin Solders
Admiralty Brass, Aluminum Brass
Manganese Bronze
Silicon Bronze
Tin Bronze
Type 410 Stainless Steel (passive)
Nickel - Silver
Copper Nickel Alloys
Lead
Nickel - Aluminum Bronze
Silver Solder
Nickel 200
Silver
Type 316 Stainless Steel (passive)
Type 304 Stainless Steel (passive)
Incoloy 825
Hastelloy B
Titanium
Hastelloy C
Platinum
Graphite
More Anodic
Anodic End
Cathodic End
Technical Data
Technical Data
B-Line series strut systems 10 Eaton
Type 304 Type 316 Zinc
Chemical Aluminum DURA GREEN™ PVC Stainless Stainless Coated Steel
Acetic Acid 10% R NR RR R NR
Acetic Acid 2% R F RR R NR
Acetone R R NR RR R
Ammonium Hydroxide-Conc. R R RR R –
Ammonium Hydroxide 10% F R RR R –
Ammonium Hydroxide 2% R R RR R –
Benzene R R NR RR –
Bromine Water NR R R NR NR –
Butanol (Butyl Alcohol) R R RR R R
Carbon Disulfide R R NR RR –
Carbon Tetrachloride F R FR R –
Chlorine Water R RR NR F R
Cutting Oil – R –– – –
Diethanolamine R R NR – – NR
Ethanol R R RR R R
Ethyl Acetate R R NR –– R
Ethylene Dichloride F R NR –– R
Formaldehyde 20% R R RR R R
Gasoline R R RR R R
Glycerine R R RR R R
Household Detergent 10% F R RR R –
Hydrochloric Acid 40% NR NR R NR NR NR
Hydrochloric Acid 10% NR F – NR NR NR
Hydrochloric Acid 2% NR F – NR NR NR
Hydrogen Peroxide 30% R NR RR R –
Hydrogen Peroxide 3% R R –R R –
Hydrogen Sulfide (Gas) R R RF R –
JP-4 Jet Fuel R R RR R –
Lactic Acid 85% F RR NR – –
Latex R R –R R NR
Linseed Oil Fatty Acid R F RR R –
Methanol R R RR R R
Methyl Ethyl Ketone R R NR –– R
Methyl Isobutyl Ketone R R NR –– R
Mineral Spirits R R –– – –
Motor Oil-10W R R RR R R
Naphtha, VM&P R R RR R R
Nitric Acid 2% F NR RR R –
Perchloroethylene R R –– – NR
Petroleum Ether – R –R R R
Phenol 10% R R NR RR R
Phosphoric Acid 2% F NR RR R NR
Potassium Hydroxide 50% NR R RR R –
Potassium Hydroxide 10% NR R RR R –
Potassium Hydroxide 2% NR R RR R –
Sodium Chloride 25% F R RR R F
Sodium Hydroxide 50% NR R RR R NR
Sodium Hydroxide 10% NR R RR R F
Sodium Hydroxide 2% NR R R– – –
Sodium Hypochlorite-C1. 10% F R R– – –
Sodium Hypochlorite-C1. 6% F RR NR R –
Sulfuric Acid 2% F NR R NR R NR
Tall Oil Fatty Acid (Syfate 94) R R R– – –
Tannic Acid 50% F R RR R –
Water-Deionized R R RR R F
Water-Sea F F RR R F
Water-Tap R R RF F R
Xyol R R NR –– –
For fiberglass corrosion chart see page 225.
The corrosion data given in this table is for general comparison only.
The presence of contaminates and the effect of temperature in chemical environments can greatly affect the corrosion of any material.
We strongly suggest that field service tests or simulated laboratory tests using actual environmental conditions be conducted in order
to determine the proper materials and finishes to be selected.
R=Recommended
F=May be used under some conditions
NR=Not Recommended
–Information not available
Technical Data
Technical Data
11 B-Line series strut systems Eaton
Design of B-Line series
Strut Systems
Beams
Beams are usually defined as horizontal
members which are subjected to vertical
loads such as shelves, platforms or
supports for pipes, conduits or cable
trays.
The following is a brief overview of
common beam configurations:
Simple Beam
An example of a simple beam is a length
of channel placed across two cylinders.
When a load is applied, the channel will
support the load because of its stiffness.
The cylinders serve to support the
channel, but do not interfere with its
natural tendency to flex or bend. Simple
beam analysis is used almost universally
for beam comparisons, even though it is
seldom practical in field installations.
A cable tray or conduit trapeze hanger
closely resembles a simple beam.
Fixed Beam
This type of fixed support restricts the
movement of the ends of the channel
when a load is applied. Because of this,
the stiffness of the channel at the ends
and center is employed to resist the load.
The result is a load capability which is
greater than that of an identical simple
beam.
The fixed beam can be approximated by
bolting or welding a length of channel to
rigid supports.
Cantilever Beam
Cantilever beams are often viewed as
variations of a fixed beam, but they have
special characteristics of their own. One
end of the channel is firmly attached to a
rigid support while the other end remains
completely free.
A shelf bracket is an example of a
cantilever beam.
Continuous Beam
This beam configuration is commonly
used in lighting installations. The
continuous beam possesses traits of
both the simple and fixed beams. When
equal loads are applied to all spans
simultaneously, the counter-balancing
effect of the loads on both sides of a
support restricts the movement of the
channel at the support, similar to that of
the fixed beam. The end spans behave
substantially like simple beams.
Continuous beam installations can
typically support 20% more load than a
simple beam of the same span with
approximately half the deflection.
Therefore, simple beam data should be
used for a general comparison only. An
example of this configuration is found in a
long run of channel when installed across
several supports to form a number of
spans.
Deflection
Deflection, commonly referred to as
“sag”, is inherent in applying a load to a
beam and cannot be avoided. Any and all
beams will deflect when loaded. The
amount of deflection will vary depending
upon the material and the stiffness or
moment of inertia. The deflection
equations in this section show that
increasing the stiffness can be increased
by a variety of methods. Increasing the
depth of the channel is the most direct
method.
The material used affects deflection in a
manner which is significantly different
from the way in which it affects load
capacity. The deflection under load is
inversely proportional to a material
property known as the “modulus of
elasticity” designated by “E”.
The modulus of elasticity is dependent
upon the basic composition of the
material and is not necessarily related to
the material’s strength.
Point Load
Point Load
Technical Data
Technical Data
B-Line series strut systems 12 Eaton
Safety Factor
The design loads given for strut beam
loads are based on a simple beam
condition using allowable stress of 25,000
psi. This allowable stress results in a
safety factor of 1.68. This is based upon a
virgin steel minimum yield strength of
33,000 psi cold worked during rolling to
an average yield stress of 42,000 psi.
Aluminum typically has an elastic modulus
which is 1/3 that of steel even though they
may have identical strength. As a result,
the deflection of aluminum channel will
be three times that of steel channel under
equal loading. In areas where structures
will be subject to general viewing,
deflection can produce a displeasing
effect. To the untrained eye, a sagging
channel may appear to be a result of poor
design or excessive loading. This is not
usually the case. Many properly designed
channel installations will show a noticeable deflection at their designed loads. In
areas where cosmetics are not important,
deflection should not be a factor.
Designing an entire installation based on
minimal deflection could result in an over
designed structure. This translates into
increased material and installation cost.
Where cosmetics are important, it may be
necessary to limit the deflection to an
aesthetically pleasing amount. This
“acceptable deflection” amount is
typically given as a fraction of the span.
1/240 span deflection is typically the limit
where the amount of deflection appears
negligible. For example, a beam span of
240” would be allowed 1” (240/240) of
deflection at the mid point. A 120” span
would only be allowed 1/2” (120/240) of
deflection. The maximum load for the
channel must be limited in order to remain
under these deflection requirements. The
allowable load resulting in 1/240 span
deflection is posted in the beam load chart
for each channel size.
For even more stringent deflection
requirements, an allowable load is listed in
the beam load charts which results in
1/360 span deflection. This amount of
deflection is sometimes used for beams in
finished ceilings that are to be plastered.
Twisting & Lateral Bracing
Loading of strut on long spans can cause
torsional stress, resulting in the tendency
of the strut to twist or bend laterally. This
phenomenon reduces the allowable beam
loads as shown in the beam loading
charts. It is recommended that long spans
be supported in a manner to prevent
twisting (fixed ends), and that the channel
have adequate lateral bracing. Many
typical strut applications provide this
support and bracing inherently. Piping,
tubing, cable trays, or conduits mounted
to the strut with straps and clamps
prevent twisting or lateral movement. If
no such lateral support exists, contact the
factory for loading recommendations.
Columns
Columns are vertical members which
carry loads in compression. One common
example of a channel column is the
vertical members of a storage rack.
In theory, a column will carry a load equal
to its cross sectional area multiplied by the
ultimate compressive stress of the
material of which the column is made. In
reality, there are many factors affecting
the load capacity of a column, such as the
tendency to buckle or twist laterally
(torsional-flexural buckling), the type of
connection at the top or bottom, the
eccentricity of the load application, and
material imperfections. Several of these
failure modes have been considered in the
allowable column load tables shown in the
“Channel” section of this catalog.
We strongly recommends that the
engineer perform a detailed study of the
many variable conditions before the
selection process begins.
Design Factors to be Considered
The loading capacity of channel depends
primarily on the material, its crosssectional design, and the beam or column
loading configuration. It should be noted
that if two lengths of channel have
identical designs and configurations, the
one made of the stronger base material
will support a larger load. Therefore, any
comparison of channel should begin by
determining whether the materials are
approximately equal in strength.
The column loading chart for each
channel lists the allowable load for each
channel in compression. This load varies
depending on the support condition or
“K-factor”.
Several “K-factors” are listed, which
correspond to the following support
conditions:
K = .8 pinned top - fixed bottom
K = .65 fixed top - fixed bottom
K = 1.0 pinned top - pinned bottom
K = 1.2 free top - fixed bottom
There are a number of physical properties
which are important to the complete
design of a channel member; the “section
modulus” designated as “Sx” or “Sy”,
“moment of inertia” designated by “Ix” or
“Iy”, and the “radius of gyration” which is
given as “rx” or “ry”.
Every structural material has its own
maximum or ultimate stress, which is
usually expressed in “pounds per square
inch” (pascals). Any load which causes a
member to fail is referred to as its
“ultimate” load. In order to prevent
channel from being accidentally loaded up
to or beyond its ultimate load, a safety
factor is included into the design. The
ultimate load is divided by the safety
factor to obtain the “recommended” or
“allowable” working load.
When evaluating channel under various
beam conditions, it is often more
convenient to compare in terms of the
ultimate or recommended “bending
moment”. Simple equations show the
stress is directly proportional to the
bending moment.
Therefore, comparing bending moments
can save time in repeated calculations.
The chart containing Formulas on
Common Beam Loadings (following page)
shows how to calculate the bending
moment for various configurations and
load conditions. It should be noted that
the bending moment is usually not
constant, but varies along the length of
the span. However, the channel must be
designed for a single point, which is the
point of maximum bending moment.
For information regarding dynamic or
seismic design, contact us.
General Information
Torque
The torque values given throughout
the catalog are to be used as a guide
only. The relationship between the
applied torque or torque wrench reading
and the actual tension created in the bolt
may be substantially different. For
example, a dry non-lubricated bolt with a
heavy plating may rate 50% as efficient as
a bolt which is lubricated with a mixture of
heavy oil and graphite. Other important
factors affecting torque-tension
relationships include friction under the bolt
head or nut, hole tolerances, and torque
wrench tolerances. Accuracy of many
commercial torque wrenches may vary as
much as plus or minus 25%.
Charts and Tables
Charts and tables in this section are
compiled from information published
by nationally recognized organizations
and are intended for use as a guide
only. We recommend that users of this
information determine the validity of
such information as applied to their
own application.
Technical Data
Technical Data
13 B-Line series strut systems Eaton
Load and Support Condition Load Deflection
Factor Factor
Simple Beam - Uniform Load 1.00 1.00
Simple Beam - Concentrated Load at Center .50 .80
Simple Beam - Two Equal Concentrated Loads at 1/4 Points 1.00 1.10
Beam Fixed at Both Ends - Uniform Load 1.50 .30
Beam Fixed at Both Ends - Concentrated Load at Center 1.00 .40
Cantilever Beam - Uniform Load .25 2.40
Cantilever Beam - Concentrated Load at End .12 3.20
Continuous Beam - Two Equal Spans - Uniform Load on One Span 1.30 .92
Continuous Beam - Two Equal Spans - Concentrated Load on Both Spans 1.00 .42
Continuous Beam - Two Equal Spans - Concentrated Load at Center of One Span .62 .71
Continuous Beam - Two Equal Spans - Concentrated Load at Center of Both Spans .67 .48
Span
Span Span
The data shown in the beam load charts for appropriate channels on pages 50 thru 71 is for simply supported, single span beams
with a uniformly distributed load. For other loading and/or support conditions, use the appropriate factor from the chart below.
Examples:
Problem: Problem:
Calculate the maximum allowable load and corresponding Calculate the maximum allowable load and corresponding
deflection of a simply supported B22 beam with a concentrated deflection of a cantilever B52 beam with a uniformly distributed
load at midspan as shown. load.
Solution : Solution:
From beam load chart for B22 (page 56), maximum allowable From beam load chart for B52 (page 67), maximum allowable
Load is A and the corresponding deflection is B. load is A and the corresponding deflection is B.
Multiplying by the appropriate factors shown in the chart above. Multiplying by the appropriate factors shown in chart above.
LOAD = A x load factor = _______ LOAD = A x load factor = _______
DEFLECTION = B x deflection factor = DEFLECTION = B x deflection factor = _______
96”
Technical Data
Technical Data
B-Line series strut systems 14 Eaton
Brackets [ ] indicate alternative
specifications which may be substituted by
the project engineer.
Part 1 - General
1.01 Work Included
A. Continuous slot, bolted framing channels
and all associated fittings and hardware.
B. Trapeze type supports for cable tray,
conduit, pipe and other similar systems.
C. Use of bolted metal framing as a surface
metal raceway.
1.02 References
A. ASTM A108 - Specification for Steel
Bars, Carbon, Cold Finished, Structural
Quality.
B. ASTM A123 - Specification for Zinc
(hot-dip galvanized) Coatings on Products
Fabricated from Rolled, Pressed, and
Forged Steel Shapes, Plates, Bars and
Strips.
C. ASTM A1011, 33,000 PSI min. yield -
Specification for Steel, Sheet and Strip,
Carbon, Hot-Rolled, Structural Quality.
D. ASTM B633 - Specification for
Electrodeposited Coatings of Zinc on Iron
and Steel.
E. ASTM A653 33,000 PSI min. yield G90
- Specification for Steel Sheet, Zinc Coated
(Galvanized) by the Hot-Dip Process,
Structural Quality.
F. ASTM A1018 - Standard Specification
for Steel, Sheet and Strip, Heavy-Thickness
Coils, Carbon, Hot-Rolled, Structural
Quality.
G. MFMA - Metal Framing Standards
Publication, MFMA-4.
1.03 Quality Assurance
A. Manufacturers: Firms regularly engaged
in the manufacture of bolted metal framing
of the types required, whose products have
been in satisfactory use in similar service
for not less than 5 years.
B. A material heat code number shall be
stamped on all strut and fittings. This is
required to maintain traceability of the
product to the material test reports to the
ASTM standard.
C. For stainless steel items, the part
number shall contain a material designator
(EXAMPLE: B-Line B22SS6 for type 316 or
B22SS4 for type 304), or a separate stamp
shall be included to reference the type of
material used.
D. MFMA Compliance: comply with the
latest revision of MFMA Standard
Publication Number MFMA-4, “Metal
Framing”.
E. NEC Compliance: Comply with the
latest revision NFPA 70 - Article 352
“Surface Metal Raceways and Surface
Nonmetallic Raceways”.
F. UL Compliance: Comply with UL
“Standard for Surface Metal Raceway and
Fittings”.
1.04 Submittals
A. Submit drawings of strut and
accessories including clamps, brackets,
hanger rods and fittings.
B. Submit manufacturer’s product data on
strut channels including, but not limited to,
types, materials, finishes, gauge thickness
and hole patterns. For each different strut
cross section, submit cross sectional
properties including Section Modulus (Sx)
and Moment of Inertia (Ix).
1.05 Delivery, Storage and
Handling
A. Deliver strut systems and components
carefully to avoid breakage, denting, and
scoring finishes. Do not install damaged
equipment.
B. Store strut systems and components in
original cartons and in clean dry space;
protect from weather and construction
traffic.
Part 2 - Products
2.01 Acceptable Manufacturers
A. Manufacturer: Subject to compliance
with these specifications, strut systems to
be installed shall be as manufactured by
Eaton’s B-Line Business [or engineer
approved equal.]
2.02 Strut Channels and
Components
A. General: Strut shall be 15/8” wide in
varying heights and welded combinations
as required to meet load capacities and
designs indicated on the drawings.
B. Material and Finish: Material and finish
specifications for each strut type are as
follows:
1. Aluminum: Strut shall be manufactured
of extruded aluminum alloy 6063-T6. All
fittings and hardware shall be zinc plated
according to ASTM B633. For outdoor use,
all fittings and hardware shall be stainless
steel Type 316 [Type 304] or chromium
zinc, ASTM F1136 Gr. 3.
2. Epoxy Painted: Strut shall be made from
steel meeting the minimum mechanical
properties of ASTM A1011 33,000 PSI min
yield, then painted with water borne epoxy
applied by a cathodic electro-deposition
process. Fittings shall be manufactured
from steel meeting the minimum
requirements of ASTM A1018 33,000 PSI
min. yield. The fittings shall have the same
epoxy finish as the strut. Threaded hardware
shall be zinc plated in accordance with
ASTM B633 Service Class 1 (SC1). Service
Class 1 is not an acceptable coating for
fittings or components other than threaded
hardware.
3. Pre-Galvanized Steel: Strut shall be made
from structural quality steel meeting the
minimum mechanical properties of ASTM
A653 33,000 PSI min. yield, mill
galvanized coating designation G90. Fittings
shall be manufactured from steel meeting
the minimum requirements of ASTM A1018
33,000 PSI min. yield and zinc plated in
accordance with ASTM B633 service class 3
(SC3). Threaded hardware shall be zinc
plated in accordance with ASTM B633
Service Class 1 (SC1). Service Class 1 is
not an acceptable coating for fittings or
components other than threaded hardware.
4. Hot-Dip Galvanized Steel: Strut shall be
made from structural quality steel meeting
the minimum mechanical properties of
ASTM A1011 33,000 PSI min. yield and shall
be hot-dip galvanized after fabrication in
accordance with ASTM A123. Fittings shall
be manufactured from steel meeting the
minimum requirements of ASTM A1018
33,000 PSI min. yield, and hot-dip
galvanized after fabrication in accordance
with ASTM A123. All hardware shall be
stainless steel Type 316 [Type 304] or
chromium zinc ASTM F1136 Gr. 3. All hotdip galvanized after fabrication products
must be returned to point of manufacture
after coating for inspection and removal of
all sharp burrs.
5. Stainless Steel: All strut, fittings and
hardware shall be made of AISI Type 316
[Type 304] stainless steel as indicated.
Channels must be identified as required in
previous section 1.03 Quality Assurance.
Part 3 - Execution
3.01 Installation
A. Install strut as indicated; in accordance
with equipment manufacturer’s
recommendations, and with recognized
industry practices.
B. All nuts and bolts shall be tightened to
the following values.
Recommended Bolted Metal Framing (Strut System) Specification
Bolt Size Torque (ft-lbs)
1/4-20 6
5/16-18 11
3/8-16 19
1/2-13 50
Technical Data
Technical Data
15 B-Line series strut systems Eaton
4Dimension Strut Information
4Dimension Strut
Changing how we build our future
Innovative features
• Profiles with two-sided and four-sided functionality
• Superior strength, lighter weight for improved
performance
• Modular design provides versatility
• SH hole accepts 5/8” hardware
• Innovative fitting solutions with virtually
hundreds of possibilities
• Ideal for new and retrofit applications
• Meets or exceeds MFMA standards
• Patents - listed on product pages
Eaton’s 4Dimension™ strut system changes
how installers will build and install support
systems for electrical, mechanical, plumbing,
HVAC and data centers in new and retrofit
commercial and industrial applications.
The revolutionary strut profile design and
innovative accessories help installers compress
project schedules and cut material costs
without sacrificing load while increasing
configuration flexibility.
Lowest total cost solution
• Up to 50% reduction in installation time for
trapeze applications
• Up to 50% reduction in material cost in many
applications
• Helps save space and weight by fully utilizing
multiple sides for ease and flexibility of installation
• Functional replacement for back to back strut
system, with considerable cost, time, and material
savings
• Multi-side design reduces complexity of higher
cost fittings required for many applications
• Compatible with most traditional fittings and
accessories (shown throughout catalog with the
following symbol
For more information, visit
www.cooperbline.com/4Dimension.
B-Line series strut systems 16 Eaton
CoSPEC Specifier Center
4Dimension Strut
CoSPEC™ specifier center is designed to help you easily SELECT, VIEW and DOWNLOAD Eaton’s
B-Line Series product design content in any one of nearly one hundred non-proprietary and proprietary
CAD, BIM, PDMS, and graphics formats, which helps speed the integration of the content into your
design project.
Features
• Easy integration and configuration
• Comprehensive library of 2D drawings and 3D models for CAD, BIM, PDMS, SP3D, and
graphics output
• Up-to-date software versions and product data information
• Submittals and specification sheets in PDF format
• Proprietary file format outputs are native to the chosen software
Nearly a Hundred Download Options
• Aveva PDMS and Intergraph SmartPlant SP3D (on select products) content
• Autodesk Revit output available
• Proprietary formats from AutoCAD to SolidWorks to Catia
• Non-proprietary formats like DXF and STEP, and more
• Graphics files in a number of formats including EPS
To get started planning your next project,
visit us at Eaton.com/CoSPEC.
Select View
Download
4
17 B-Line series strut systems Eaton
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Applications
4Dimension Strut
Overhead Support Grid System
Column Support with 4Dimension
Cantilever Supports
Overhead Mechanical Racking Support System
4D2000 Pipe Clamps
(shown in open & dove-tail sides)
4D22 Channel
Pages 22-25
Traditional
Strut Fittings
Consult Catalog
Traditional
Strut Fittings
Consult Catalog
Traditional
Strut Fittings
Consult Catalog
4D280SQ Post Base
Page 43
4D5100 2-Piece
Strengthening
Clamp/Hanger
Page 42
4D22 Channel
Pages 22-25
Dove-Tail Slot
Continuous Slot
4D22 Channel
Pages 22-25
4D22 Channel
Pages 22-25
4D21 Channel
Pages 26-29
4D2000 Series
Pipe Clamps
Pages 37-39
4D2000 Series
Pipe Clamps
Pages 37-39
4D5000 Flip Clip™
Page 40
B-Line series strut systems 18 Eaton
4Dimension Applications
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Strut
Overhead I-Beam Support
Wall Support System
Multi Shelf Rack
(using FLEXTRAY™ flats for shelves)
4D5000 Flip Clip™
Page 40
Utility Support System
Traditional
Strut Fittings
Consult Catalog
4D22 Channel
Pages 22-25 4D22 Channel
Pages 22-25
4D21 Channel
Pages 26-29
4D21 Channel
Pages 26-29
4D21 Channel
Pages 26-29
4DB Dove-Tail Bar
Page 30
4DB Dove-Tail Bar
Page 30
4D5001 2-Piece
Turn & Lock
Page 41
4D2000 Series
Pipe Clamps
Pages 37-39
4D2000 Series
Pipe Clamps
Pages 37-39
4D2000 Series
Pipe Clamps
Pages 37-39
4D2000 Series
Pipe Clamps
Pages 37-39 4D280SQ Post Base
Page 43
4D22 Channel
Pages 22-25
4D22SH Channel
Pages 22-25
4D441-22 Beam Clamps
Pages 44-45
4D21 or 4D22 Channel
Pages 22-29
Supported with Traditional
Strut Fittings
Consult Catalog
19 B-Line series strut systems Eaton
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Channels
4Dimension Strut
Channel
4Dimension™ channel is cold formed on our modern rolling mills from 18 Ga. (1.2mm) low carbon steel. A continuous slot with
inturned lips and up to three dovetail designed sides provide the ability to make attachments on multiple sides of channel.
Lengths & Tolerances
All channels excluding SH style: ± 1/8” (3.2mm) on 10’ (3.05m) and ± 3/16” (4.76mm) on 20’ (6.09m)
All ‘SH’ channels only: ± 1/4” (6.35mm) on 10’ (3.05m) and ± 1/2” (12.70mm) on 20’ (6.09m)
Custom lengths are available upon request.
Slots
Slotted series of channels offer full flexibility. A variety of pre-punched slot patterns eliminate the need for precise field
measuring for hole locations. Slots offer wide adjustments in the alignment and bolt sizing.
Dove-Tail Sides
A variety of pre-punched 9/16” (14.3 mm) diameter hole patterns are available in our channels. These hole patterns provide an
economical alternative to costly field drilling required for many applications.
Materials & Finishes (Unless otherwise noted)
Steel: Plain & Pre-galvanized
18 Ga. (1.2mm)
Note: A minimum order may apply on special
material and finishes.
Design Load (Steel & Stainless Steel)
The design loads given for strut beam loads are
based on a simple beam condition. This allowable
stress results in a safety factor of 1.68.
Metric
Metric dimensions are shown in parentheses. Unless noted, all metric dimensions are in millimeters.
Compatability of B-Line series strut products with 4Dimension Strut System
Throughout the catalog, strut products that are
compatible with the 4Dimension strut system
will be flagged with the following symbol.
Recommended Torque (as shown in tables)
Note: Refer to bottom of page 4D08 for
special torquing note of 4D21SH and 4D22SH or
4D21S and 4D22S trapeze assemblies.
Finish
Code Finish Specification
PLN Plain ASTM A1011, 50,000 PSI
min. yield
GRN DURA GREEN™
GLV Pre-Galvanized ASTM A653 50,000 PSI
min. yield
HDG Hot-Dipped Galvanized ASTM A123
YZN Yellow Zinc Chromate ASTM B633 SC3 Type II
SS4 Stainless Steel Type 304 ASTM A240
SS6 Stainless Steel Type 316 ASTM A240
Bolt Size 1/4”-20 5/16”-18 3/8”-16 1/2”-13
Foot/Lbs. 6 11 19 50
Nm 8 15 26 68
Bolt Size M6x1 M8 x1.25 M10 x 1.5 M12x1.75
Nm 12 17 36 62
Foot/Lbs. 9 13 27 46
B-Line series strut systems 20 Eaton
4Dimension Channels
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Strut
Channel Part Numbering
Example:
4D22 SH - 120 GLV
Channel Type Hole Patterns Length Material/Finish
4D21 SH (pg. 22 & 26) 120 GRN
4D22 S (pg. 22 & 26) 240 GLV
Leave blank for HDG
no hole pattern YZN
SS4
SS6
Channel Material & Thickness * Channel Hole Pattern
Dimensions SH S
Stainless
Channel Height Width Steel
Type
Steel Type Type
304 316
134
4D21 11/16” (27.0) 21/8” (54.0) 18 Ga. 18 Ga. 18 Ga. 1 2 3 1 2 3
4D22 21/8” (54.0) 21/8” (54.0) 18 Ga. 18 Ga. 18 Ga. 1 2 3 1 2 3
Selection Chart
for Channels, Materials and Hole Patterns
The selection has been prepared to provide a reference for available channel, materials and hole patterns. Material types
available for various hole patterns are defined by numbers 1 thru 3.
Some stainless steel channels with hole patterns are available on special order only.
*Metric equivalent for thicknesses:
18 Ga. = 1.2 mm
Properties may vary due to commercial tolerances of the material. 1 Steel
2 Type 304 Stainless Steel
3 Type 316 Stainless Steel
5/8” x 11/4”
slots on 2” centers
13/32” x 3”
slots
Recommended Torque
(4D21SH & 4D22SH or 4D21S & 4D22S trapeze assemblies)
Recommended torque on 4Dimension trapeze hangers using
4D21SH and 4D22SH or 4D21S and 4D22S channel and traditional
hardware (B200 series square washer, hex nuts, and lock washers)
is 10 ft./lbs. (13Nm) for 5/16”, 3/8”, and 1/2” ATR.
21 B-Line series strut systems Eaton
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Channels
4Dimension Strut
4D22 Channel - 21/8” (53.5mm) x 21/8” (53.5mm)
• Thickness: 18 Gauge (1.2mm)
• Standard Lengths: 10’ (3.05m) & 20’ (6.09m)
• Finish: Plain, DURA GREEN™,
Pre-Galvanized, HDG, SS4, SS6
• Bundle Size: 320 ft. (97.6m)
• Bundle Dimensions:
10ft - 11” (279.4mm) x 1011/16” (271.5mm)
20ft - 11” (279.4mm) x 63/8” (161.9mm)
• For use under U.S. Pat. Nos. 9,470,339;
9,580,900; 9,574,589; 9,651,171; 9,683,590;
9,732,887; 9,746,105; 9,790,980; and 9,926,957
• Additional Patent(s) Pending
Areas of Moment of Section Radius of Moment of Section Radius of
Channel Weight Section Inertia (I) Modulus (S) Gyration (r) Inertia (I) Modulus (S) Gyration (r)
lbs./ft. kg/m in.2 cm2 in.4 cm4 in.3 cm3 in. cm in.4 cm4 in.3 cm3 in. cm
4D22 1.603 (2.39) 0.470 (3.03) 0.262 (10.91) 0.236 (3.87) 0.747 (1.90) 0.280 (11.65) 0.266 (4.36) 0.772 (1.96)
4D22A 3.206 (4.78) 0.940 (6.06) 1.453 (60.47) 0.690 (11.31) 1.243 (3.16) 0.560 (23.30) 0.532 (8.72) 0.772 (1.96)
X - X Axis Y - Y Axis
Calculations of section properties are based on metal thicknesses as determined by the AISI Cold-Formed Steel Design Manual.
4D22 Section Properties
Sample Combinations
Various combinations, as shown below, can be assembled in the field by using the 4DB (dove-tail bar) or the 4D5101 (snap-on clamp).
21/8”
(53.5)
X X
Y
Y
7/8”
(22.2)
9/32”
(7.1)
21/8”
(53.5)
‘SH’ Hole Pattern
5/8” (15.9mm) x 11/4” (31.8mm)
Slots: 2” (50.8mm) centers
Weight: 1.548 lbs./ft. (2.30kg/m)
‘S’ Hole Pattern
13/32” (10.3mm) x 3” (76.2mm)
Slots: 4” (101.6mm) centers
Weight: 1.556 lbs./ft. (2.32kg/m)
B-Line series strut systems 22 Eaton
4Dimension Strut
4Dimension Channels
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4D22 Max. Column Loading K = .80 Max. Column Loading (Loaded @ C.G.)
Unbraced Loaded@ Loaded@
Height C.G. Slot Face K = .65 K = 1.0 K = 1.2
In. mm Lbs. kN Lbs. kN Lbs. kN Lbs. kN Lbs. kN
12 (305) 12105 (53.84) 4900 (21.79) 12177 (54.16) 11888 (52.88) 11502 (51.16)
24 (609) 10690 (47.55) 4623 (20.56) 11321 (50.35) 9791 (43.55) 8940 (39.76)
36 (914) 8792 (39.10) 4087 (18.18) 9829 (43.72) 7210 (32.07) 6113 (27.19)
48 (1219) 7110 (31.62) 3499 (15.56) 8326 (37.03) 5356 (23.82) 4256 (18.93)
60 (1524) 5290 (23.53) 2930 (13.03) 6915 (30.76) 4099 (18.23) 3306 (14.70)
72 (1829) 4188 (18.63) 2508 (11.15) 5400 (24.02) 3344 (14.87) 2676 (11.90)
84 (2133) 3536 (15.73) 2237 (9.95) 4599 (20.45) 2545 (11.32) 2074 (9.22)
96 (2438) 3145 (13.99) 1839 (8.18) 3614 (16.07) 2114 (9.40) 1692 (7.52)
108 (2743) 2381 (10.59) 1607 (7.15) 3024 (13.45) 1807 (8.04) 1417 (6,30)
120 (3048) 1955 (8.69) 1325 (5.89) 2519 (11.20) 1524 (6.78) 1163 (5.17)
**Where the slenderness ratio KL exceeds 200, and K = end fixity factor, L = actual length and r = radius of gyration. r
Based on simple beam condition using test methods according to MFMA standards. To determine concentrated load
capacity at mid-span, multiply uniform load by 0.5 and corresponding deflection by 0.8.
4D22 Channel - 21/8” (53.5mm) x 21/8” (53.5mm) Load Data
4D22 Uniform Load @ Deflection =
Beam Span Uniform Load Deflection 1/240 Span 1/360 Span
In. mm Lbs. kN In. mm Lbs. kN Lbs. kN
12 (305) 2871 (12.77) 0.05 (1.27) 2871 (12.77) 2523 (11.22)
24 (609) 1872 (8.33) 0.10 (2.54) 1872 (8.33) 1645 (7.31)
36 (914) 1249 (5.55) 0.17 (4.32) 1249 (5.55) 866 (3.85)
48 (1219) 936 (4.16) 0.22 (5.59) 936 (4.16) 649 (2.88)
60 (1524) 749 (3.33) 0.43 (10.92) 480 (2.13) 244 (1.08)
72 (1829) 624 (2.77) 0.52 (13.21) 400 (1.78) 203 (0.90)
84 (2133) 535 (2.38) 0.70 (17.78) 309 (1.37) 184 (0.82)
96 (2438) 468 (2.08) 0.80 (20.32) 270 (1.20) 161 (0.71)
108 (2743) 416 (1.85) 1.00 (25.40) 230 (1.02) 148 (0.66)
120 (3048) 374 (1.66) 1.12 (28.45) 207 (0.92) 133 (0.59)
Beam Load Data
Column Load Data
23 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Channels
Beam Load Data
4D22
Beam Assembly Uniform Load Deflection Uniform Load @ Uniform Load @
Span Style 1/240 Span 1/360 Span
In. mm Lbs. kN In. mm Lbs. kN Lbs. kN
4DB3 2610 (11.61) 0.07 (1.78) 2490 (11.07) 1282 (5.70)
12 (305) 4DDN 2610 (11.61) 0.06 (1.52) 2610 (11.61) 2004 (8.91)
4D5101 2088 (9.29) 0.07 (1.78) 2088 (9.29) 1549 (6.89)
4DB3 2610 (11.61) 0.13 (3.30) 2490 (11.07) 1282 (5.70)
24 (609) 4DDN 2610 (11.61) 0.11 (2.79) 2610 (11.61) 2004 (8.91)
4D5101 2088 (9.29) 0.14 (3.55) 2088 (9.29) 1549 (6.89)
4DB3 2610 (11.61) 0.26 (6.60) 1771 (7.88) 957 (4.25)
36 (914) 4DDN 2610 (11.61) 0.23 (5.84) 2142 (9.53) 1414 (6.29)
4D5101 2088 (9.29) 0.20 (5.08) 1998 (8.89) 1279 (5.69)
4DB3 2405 (10.70) 0.35 (8.89) 1632 (7.26) 882 (3.92)
48 (1219) 4DDN 2405 (10.70) 0.31 (7.87) 1974 (8.78) 1303 (5.79)
4D5101 1924 (8.56) 0,26 (6.60) 1841 (8.19) 1179 (5.24)
4DB3 1924 (8.56) 0.49 (12.44) 1191 (5.30) 763 (3.39)
60 (1524) 4DDN 1924 (8.56) 0.50 (12.70) 1234 (5.89) 828 (3.68)
4D5101 1539 (6.84) 0.40 (10.16) 1198 (5.33) 796 (3.54)
4DB3 1602 (7.12) 0.59 (14.98) 992 (4.41) 636 (2.83)
72 (1829) 4DDN 1603 (7.13) 0.60 (15.24) 1028 (4.57) 690 (3.07)
4D5101 1282 (5.70) 0.48 (12.19) 998 (4.44) 663 (2,95)
84 (2133)
4DDN 1374 (6.11) 0.87 (22.10) 810 (3.60) 549 (2.44)
4D5101 1099 (4.89) 0.71 (18.03) 771 (3.43) 513 (2.28)
96 (2438)
4DDN 1202 (5.34) 0.99 (25.14) 620 (2.31) 420 (1.87)
4D5101 962 (4.28) 0.81 (20.57) 590 (2.62) 393 (1.75)
108 (2743)
4DDN 1069 (4.75) 1.35 (34.29) 511 (2.27) 342 (1.52)
4D5101 855 (3.80) 1.10 (27.94) 490 (2.18) 325 (1.44)
120 (3048)
4DDN 962 (4.28) 1.50 (38.10) 414 (1.84) 277 (1.23)
4D5101 770 (3.42) 1.22 (30.99) 397 (1.76) 263 (1.17)
Back-To-Back - 4D22 Channel - 21/8” (53.5mm) x 41/4” (107.0mm) Load Data
4DB3 Assembly
(see page 30 for
product information)
4DDN Assembly
(see page 31 for
product information)
Loading based on 4DB3 or 4DDN installed on 24” (609mm) intervals using the 4D22A configuration.
B-Line series strut systems 24 Eaton
4Dimension Strut
4Dimension Channels
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
Column Load Data
4D22 Assembly Max. Column Loading K = .80 Max. Column Loading (Loaded @ C.G.)
Unbraced Style Loaded@ Loaded@
Height C.G. Slot Face K = .65 K = 1.0 K = 1.2
In. mm Lbs. kN Lbs. kN Lbs. kN Lbs. kN Lbs. kN
12 (305) See Note 25322 (112.64) 8286 (36.86) 25188 (112.04) 26265 (112.38) 25013 (111.26)
24 (609) See Note 24634 (109.58) 8112 (36.08) 24878 (110.66) 24380 (108.44) 23660 (105.28)
36 (914) See Note 23701 (105.43) 7737 (34.42) 24391 (108.49) 22876 (101.76) 21767 (96.82)
48 (1219) See Note 22259 (99.01) 6701 (29.81) 23019 (102.39) 20792 (92.49) 18624 (82.84)
60 (1524) See Note 20541 (91.37) 5292 (23.54) 21957 (97.67) 18086 (80.45) 15045 (66.92)
72 (1829) See Note 18803 (83.64) 4234 (18.83) 21029 (93.54) 15059 (66.98) 11008 (48.97)
84 (2133) See Note 15966 (71.02) 3409 (15.16) 19131 (85.10) 11406 (50.73) 7971 (35.46)
96 (2438) See Note 13469 (59.91) 2661 (11.84) 17157 (76.32) 8672 (38.57) 6107 (27.16)
108 (2743) See Note 10675 (47.48) 2233 (9.93) 15412 (68.56) 6869 (30.55) 4745 (21.11)
120 (3048) See Note 8564 (38.09) 1735 (7.71) 13014 (57.89) 5495 (24.44) 3805 (16.93)
Back-To-Back - 4D22 Channel - 21/8” (53.5mm) x 41/4” (107.0mm) Load Data
4DB3 Assembly
(see page 30 for
product information)
4DDN Assembly
(see page 31 for
product information)
Note: Loading based on 4DB3 or 4DDN installed on 24” (609mm) intervals using the 4D22A configuration.
25 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Channels
4D21 Channel - 21/8” (53.5mm) x 11/16” (26.7mm)
• Thickness: 18 Gauge (1.2mm)
• Standard Lengths: 10’ (3.05m) & 20’ (6.09m)
• Finish: Plain, DURA GREEN™,
Pre-Galvanized, HDG, SS4, SS6
• Bundle Size: 320 ft. (97.6m)
• Bundle Dimensions:
10ft - 11” (279.4mm) x 61/2” (165.1mm)
20ft - 11” (279.4mm) x 45/16” (109.5mm)
• For use under U.S. Pat. Nos. 9,470,339;
9,580,900; 9,574,589; 9,651,171; 9,683,590;
9,732,887; 9,746,105; 9,790,980; and 9,926,957
• Additional Patent(s) Pending
Calculations of section properties are based on metal thicknesses as determined by the AISI Cold-Formed Steel Design Manual.
Sample Combinations
Various combinations, as shown below, can be assembled in the field by using the 4DB (dove-tail bar).
11/16”
(26.7)
21/8”
(53.5)
7/8”
(22.2)
9/32”
(7.1)
X X
Y
Y
‘SH’ Hole Pattern
5/8” (15.9mm) x 11/4” (31.8mm)
Slots: 2” (50.8mm) centers
Weight: 0.973 lbs./ft. (1.45kg/m)
‘S’ Hole Pattern
13/32” (10.3mm) x 3” (76.2mm)
Slots: 4” (101.6mm) centers
Weight: 0.981 lbs./ft. (1.46kg/m)
Areas of Moment of Section Radius of Moment of Section Radius of
Channel Weight Section Inertia (I) Modulus (S) Gyration (r) Inertia (I) Modulus (S) Gyration (r)
lbs./ft. kg/m in.2 cm2 in.4 cm4 in.3 cm3 in. cm in.4 cm4 in.3 cm3 in. cm
4D21 1.032 (1.54) 0.302 (1.95) 0.042 (1.76) 0.077 (1.26) 0.374 (0.95) 0.167 (6.97) 0.159 (2.60) 0.744 (1.89)
4D21A 2.064 (3.08) 0.605 (3.90) 0.238 (9.89) 0.226 (3.70) 0.627 (1.59) 0.335 (13.95) 0.318 (5.21) 0.744 (1.89)
4D21 Section Properties X - X Axis Y - Y Axis
B-Line series strut systems 26 Eaton
4Dimension Strut
4Dimension Channels
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4D21 Channel - 21/8” (53.5mm) x 11/16” (26.7mm) Load Data
4D21 Uniform Load @ Deflection =
Beam Span Uniform Load Deflection 1/240 Span 1/360 Span
In. mm Lbs. kN In. mm Lbs. kN Lbs. kN
12 (305) 1402 (6.24) 0.10 (2.54) 1085 (4.82) 514 (2.28)
24 (609) 700 (3.11) 0.21 (5.33) 542 (2.41) 257 (1.14)
36 (914) 468 (2.08) 0.34 (8.64) 386 (1.72) 204 (0.91)
48 (1219) 351 (1.56) 0.47 (11.94) 230 (1.02) 150 (0.67)
60 (1524) 280 (1.25) 0.72 (18.29) 173 (0.77) 104 (0.46)
72 (1829) 234 (1.04) 0.96 (24.38) 115 (0.51) 57 (0.25)
84 (2133) 200 (0.89) 1.32 (33.53) 91 (0.40) 45 (0.20)
96 (2438) 175 (0.78) 1.68 (42.67) 67 (0.30) 33 (0.15)
108 (2743) 156 (0.69) 2.15 (54.61) 57 (0.25) 29 (0.13)
120 (3048) 140 (0.62) 2.61 (66.29) 47 (0.21) 24 (0.11)
Beam Load Data
4D21 Max. Column Loading K = .80 Max. Column Loading (Loaded @ C.G.)
Unbraced Loaded@ Loaded@
Height C.G. Slot Face K = .65 K = 1.0 K = 1.2
In. mm Lbs. kN Lbs. kN Lbs. kN Lbs. kN Lbs. kN
12 (305) 9365 (41.65) 3493 (15.53) 9465 (42.10) 9166 (40.77) 8917 (39.66)
24 (609) 8367 (37.21) 3084 (13.72) 8715 (38.76) 7200 (32.02) 5986 (26.62)
36 (914) 6045 (26.89) 2410 (10.72) 7430 (33.05) 3998 (17.78) 2792 (12.42)
48 (1219) 3555 (15.81) 1744 (7.76) 5286 (23.51) 2254 (10.02) 1574 (7.00)
60 (1524) 2277 (10.13) 1296 (5.76) 3413 (15.18) 1453 (6.46) 1009 (4.49)
72 (1829) 1585 (7.05) 1006 (4.47) 2424 (10.78) 1020 (4.53) 703** (3.12)
84 (2133) 1182 (5.26) 797 (3.54) 1762 (7.84) 756** (3.36) 520** (2.31)
96 (2438) 896** (3.98) 639 (2.84) 1365 (6.07) 567** (2.52) -- (--)
108 (2743) 703** (3.12) 535 (2.38) 1081 (4.81) -- (--) -- (--)
120 (3048) 578** (2.57) 443 (1.97) 863** (3.84) -- (--) -- (--)
**Where the slenderness ratio KL exceeds 200, and K = end fixity factor, L = actual length and r = radius of gyration. r
Column Load Data
Based on simple beam condition using test methods according to MFMA standards. To determine concentrated load
capacity at mid-span, multiply uniform load by 0.5 and corresponding deflection by 0.8.
27 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Channels
Beam Load Data
Back-To-Back - 4D21 Channel - 21/8” (53.5mm) x 21/8” (153.5mm) Load Data
4DB3 Assembly
(see page 30 for
product information)
4DDN Assembly
(see page 31 for
product information)
4D21
Beam Assembly Uniform Load Deflection Uniform Load @ Uniform Load @
Span Style 1/240 Span 1/360 Span
In. mm Lbs. kN In. mm Lbs. kN Lbs. kN
4DB3 1270 (5.65) 0.11 (2.79) 572 (2.54) 328 (1.46) 12 (305) 4DDN 1270 (5.65) 0.10 (2.54) 752 (3.34) 454 (2.02)
4DB3 1270 (5.65) 0.22 (5.59) 572 (2.54) 328 (1.46) 24 (609) 4DDN 1270 (15.65) 0.19 (4.82) 752 (3.34) 454 (2.02)
4DB3 1013 (4.50) 0.41 (10.41) 422 (1.88) 262 (1.16) 36 (914) 4DDN 1013 (4.50) 0.41 (10.41) 424 (1.88) 256 (1.14)
4DB3 759 (3.37) 0.55 (13.97) 316 (1.40) 196 (0.87) 48 (1219) 4DDN 759 (3.37) 0.55 (13.87) 318 (1.41) 192 (0.85)
4DB3 608 (2.70) 0.88 (22.35) 199 (0.88) 127 (0.56) 60 (1524) 4DDN 608 (2.70) 0.84 (21.33) 242 (1.07) 168 (0.75)
4DB3 506 (2.25) 1.06 (26.92) 166 (0,74) 106 (0.47) 72 (1829) 4DDN 506 (2.25) 1.01 (25.65) 201 (0.89) 140 (0.62)
84 (2133) 4DDN 434 (1.93) 1.53 (38.86) 165 (0.73) 112 (0.50)
96 (2438) 4DDN 380 (1.69) 1.75 (44.45) 126 (0.56) 86 (0.38)
108 (2743) 4DDN 338 (1.50) 2.47 (62.74) 101 (0.45) 69 (0.30)
120 (3048) 4DDN 304 (1.35) 2.74 (69.59) 82 (0.36) 56 (0.25)
Loading based on 4DB3 or 4DDN installed on 24” (609mm) intervals using the 4D21A configuration.
B-Line series strut systems 28 Eaton
4Dimension Strut
4Dimension Channels
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
**Where the slenderness ratio KL exceeds 200, and K = end fixity factor, L = actual length and r = radius of gyration. r
Back-To-Back - 4D21 Channel - 21/8” (53.5mm) x 21/8” (53.5mm) Load Data
4DB3 Assembly
(see page 30 for
product information)
4DDN Assembly
(see page 31 for
product information)
Column Load Data
4D21 Assembly Max. Column Loading K = .80 Max. Column Loading (Loaded @ C.G.)
Unbraced Style Loaded@ Loaded@
Height C.G. Slot Face K = .65 K = 1.0 K = 1.2
In. mm Lbs. kN Lbs. kN Lbs. kN Lbs. kN Lbs. kN
12 (305) See Note 21287 (94.69) 5930 (26.38) 21601 (96.09) 21123 (93.96) 20584 (91.56)
24 (609) See Note 19501 (86.74) 5577 (24.80) 20267 (90.15) 18462 (82.12) 17259 (76.77)
36 (914) See Note 17030 (75.75) 4982 (22.16) 18383 (81.77) 15088 (67.11) 12502 (55.61)
48 (1219) See Note 14343 (63.80) 4413 (19.63) 16280 (72.41) 10941 (48.67) 7621 (33.90)
60 (1524) See Note 11290 (50.22) 3944 (17.54) 14430 (64.19) 7191 (31.98) 4907 (21.83)
72 (1829) See Note 7750 (34.47) 3271 (14.55) 11666 (51.89) 5037 (22.41) 3476 (15.46)
84 (2133) See Note 5672 (25.23) 2727 (12.13) 8563 (38.09) 3647 (16.22) 2533 (11.27)
96 (2438) See Note 4411 (19.62) 2292 (10.19) 6685 (29.73) 2805 (11.48) 1941 (8.63)
108 (2743) See Note 3479 (15.48) 1958 (8.71) 5234 (23.28) 2204 (9.80) 1542** (6.86)
120 (3048) See Note 2834 (12.60) 1700 (7.56) 4258 (18.94) 1806 (8.03) 1325** (5.89)
Note: Loading based on 4DB3 or 4DDN installed on 24” (609mm) intervals using the 4D21A configuration.
29 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Back-To-Back Accessories
4DB - Dove-Tail Bar (Exclusively for 4Dimension™ Strut - Dove-Tail Sides)
Part No. Thread Size Pull-Out Strength Trapeze Loading Wt./C
Lbs. kN Lbs. kN Lbs. kg
4DB3-1/4 1/4”-20 690 (3.07) 465 (2.07) 11 (4.99)
4DB3-3/8 3/8”-16 690 (3.07) 465 (2.07) 11 (4.99)
4DB5-1/4 1/4”-20 490 (2.18) 500 (2.22) 19 (8.62)
4DB5-3/8 3/8”-16 490 (2.18) 500 (2.22) 19 (8.62)
4DB7-1/4 1/4”-20 460 (2.04) 435 (1.93) 27 (12.25)
4DB7-3/8 3/8”-16 460 (2.04) 435 (1.93) 27 (12.25)
• For horizontal applications only
• Recommend 3/8”-16 x 1/2” (12.7mm) long cone point set screw
for threaded hole - torque to 4 ft/lbs. (5Nm)
• Bar thickness - 1/2” (12.7mm)
• 1/4”-20 or 3/8”-16 threaded hole; 17/32” (13.5mm) clearance hole
• Spring that locks into slot on 4Dimension channels for easy
installation
• Aluminum - clear anodized
• U.S. Pat. Nos. 9,470,339; 9,587,767; and 9,683,590
• Additional Patent(s) Pending
Back-To-Back Installation
Wall Mount Installation
Safety Factor of 2.5
Loading based on 24” (609mm) span
B-Line series strut systems 30 Eaton
4Dimension Strut
4Dimension Back-To-Back Accessories
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
Installation
4DDN - Dual Dove-Tail Nut (Exclusively for 4Dimension™ Strut - Dove-Tail Sides)
• One 4Dimension channel must have ‘SH’ slot pattern
• Torque to 19 ft./lbs. (26Nm)
• Zinc or Stainless Steel Type 316 (add SS6 to part number)
• Hex head wrench size - 9/16”
• U.S. Pat. Nos. 9,470,339 and 9,926,957
• Additional Patent(s) Pending
Part No. Pull-Out Strength Slip Strength Wt./C
Lbs. kN Lbs. kN Lbs. kg
4DDN228 325 (1.44) 55 (0.24) 11.4 (5.17)
Safety Factor of 2.5
31 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Channel Nuts
N-Series
Spring Nut
(page 35)
TN Series
Twirl-Nut™
(page 36)
4DNW
Dove-Tail Combo Nut Washer
(page 34)
NW Series
Combo Nut Washer
(page 35)
N-WO Series
Nut Without Spring
(page 36)
4DTN
Dove-Tail Twirl-Nut™
(page 33)
4DWN
Wire Wing Channel Nut
(page 34)
4DSN
Dove-Tail Slide-In Nut
(page 33)
Nut Type 4Dimension™ Channel Thread Size
4D21 4D22 1/4”-20 5/16”-18 3/8”-16 1/2”-13
4DTN 4 4 4 44 --
4DSN 4 4 4 44 --
4DWN * 4 4 4 4 44
4DNW 44 4 4 4 --
NW Series * 4 4 4 4 44
N Series * 4 4 4 4 44
N-WO Series * 4 4 4 4 44
TN Series * 4 4 4 4 44
* Can only be used on open side of 4Dimension channel.
B-Line series strut systems 32 Eaton
4Dimension Strut
4Dimension Channel Nuts
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
Dove-Tail Sides Installation
4DTN - Dove-Tail Twirl-Nut™ (Exclusively for 4Dimension™ Strut - Dove-Tail Sides)
4DSN - Dove-Tail Slide-In Nut (Exclusively for 4Dimension Strut - All Sides)
• Used in dove-tail sides only
• Installs with quarter turn
• Recommended bolt length in dove-tail side - 1/2“ (12.7mm)
• Zinc plated steel or Stainless Steel Type 316 (add SS6 to part number)
• Safety Factor 3.0
* Use 85% load factor for stainless steel parts
** Use 50% load factor for stainless steel dove tail sides
• Can be used in dove-tail sides (4D21 & 4D22) and open side (4D22)
• Recommended bolt length in dove-tail side - 1/2“ (12.7mm)
• Can be used in traditional channel by bending wire down
• Zinc plated steel or Stainless Steel Type 316 (add SS6 to part number)
• Safety Factor 3.0
• Reference instruction sheet for proper assembly and installation
* Use 85% load factor for stainless steel
** Use 30% load factor for stainless steel open side and 50% for dove tail sides
Part No. Thread Size Nut Thickness Pull-Out Strength* Slip Strength** Wt./C
In. mm Lbs. kN Lbs. kN Lbs. kg
4DTN224 1/4”-20 15/64” (5.9) 400 (1.78) 300 (1.33) 4.4 (1.99)
4DTN223 5/16”-18 15/64” (5.9) 490 (2.18) 300 (1.33) 4.2 (1.90)
4DTN228 3/8”-16 15/64” (5.9) 490 (2.18) 350 (1.55) 4.1 (1.86)
Part Thread Nut Pull-Out Strength* Slip Strength**
No. Size Thickness Open Dove-Tail Open Dove-Tail Wt./C
In. mm Lbs. kN Lbs. kN Lbs. kN Lbs. kN Lbs. kg
4DSN224 1/4”-20 1/4” (6.3) 450 (2.00) 281 (1.25) 330 (1.47) 300 (1.33) 7.1 (3.22)
4DSN223 5/16”-18 1/4” (6.3) 867 (3.85) 489 (2.17) 767 (3.41) 300 (1.33) 7.0 (3.17)
4DSN228 3/8”-16 1/4” (6.3) 883 (3.93) 446 (1.98) 1067 (4.74) 300 (1.33) 6.8 (3.08)
To achieve catalog load rating, total thread engagement is required.
To achieve catalog load rating, total thread engagement is required.
Open Side Installation
Dove-Tail Sides Installation
• U.S. Pat. No. 9,580,900
• For use under U.S. Pat. No.
9,347,213
• Additional Patent(s) Pending
• U.S. Pat. No. 9,790,980
• Additional Patent(s) Pending
33 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Channel Nuts
4DWN - Wire Wing Channel Nut (Exclusively for 4Dimension™ Strut - Open Side)
4DNW - Dove-Tail Combo Nut Washer (Exclusively for 4Dimension Strut - Dove-Tail Side)
• Used in open side only (4D21 & 4D22)
• Can be used in traditional channel by bending wire down
• Zinc plated steel or Stainless Steel Type 316 (add SS6 to part number)
• Safety Factor 3
* Use 85% load factor for stainless steel
** Use 30% load factor for stainless steel
• Used in dove-tail side only
• Installs with quarter turn
• To lock combo nut washer in place a hex nut (sold separately) is required
• Zinc plated steel or Stainless Steel Type 316 (add SS6 to part number)
• Safety Factor 3
* Use 85% load factor for stainless steel
** Use 50% load factor for stainless steel dove tail sides
Part No. Thread Size Nut Thickness Pull-Out Strength* Slip Strength** Wt./C
In. mm Lbs. kN Lbs. kN Lbs. kg
4DWN224 1/4”-20 23/64” (9.1) 450 (2.00) 330 (1.47) 8.1 (3.67)
4DWN223 5/16”-18 23/64” (9.1) 750 (3.33) 450 (2.00) 7.9 (3.58)
4DWN228 3/8”-16 23/64” (9.1) 850 (3.78) 800 (3.56) 7.7 (3.49)
4DWN225 1/2”-13 23/64” (9.1) 1020 (4.53) 1250 (5.56) 7.0 (3.17)
Part No. Thread Size Nut Thickness Pull-Out Strength* Slip Strength** Wt./C
In. mm Lbs. kN Lbs. kN Lbs. kg
4DNW224 1/4-20 15/64” (5.9) 400 (1.78) 300 (1.33) 15.3 (6.94)
4DNW223 5/16-18 15/64” (5.9) 490 (2.18) 300 (1.33) 15.1 (6.85)
4DNW228 3/8-16 15/64” (5.9) 490 (2.18) 350 (1.55) 14.7 (66.7)
Open Side Installation
Dove-Tail Side Installation
• Patent Pending
• U.S. Pat. No. 9,651,171
• Additional Patent(s) Pending
B-Line series strut systems 34 Eaton
4Dimension Strut
4Dimension Channel Nuts
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
NW Series - Combo Nut Washer (Traditional Strut & 4Dimension™ Strut - Open Side)
N Series - Spring Nut (Traditional Strut & 4Dimension Strut - Open Side)
• Used in open side only
• Zinc plated steel or Stainless Steel Type 316 (add SS6 to part number)
• To lock combo nut washer in place a hex nut (sold separately) is required
• Safety Factor 3
• U.S. Pat. No. 7,604,444
* Use 85% load factor for stainless steel
** Use 30% load factor for stainless steel
• Used in open side only
• Zinc plated steel or Stainless Steel Type 316 (add SS6 to part number)
• Safety Factor 3
* Use 85% load factor for stainless steel
** Use 30% load factor for stainless steel
Part No. Thread Size Nut Thickness Pull-Out Strength* Slip Strength** Wt./C
In. mm Lbs. kN Lbs. kN Lbs. kg
NW524 1/4”-20 1/4” (6.3) 450 (2.00) 330 (1.47) 11.9 (5.40)
NW528 3/8”-16 3/8” (9.5) 1100 (4.89) 800 (3.56) 13.8 (6.26)
NW525 1/2”-13 3/8” (9.5) 1275 (5.67) 1500 (6.67) 13.1 (5.94)
Part No. Thread Size Nut Thickness Pull-Out Strength* Slip Strength** Wt./C
In. mm Lbs. kN Lbs. kN Lbs. kg
N224 1/4”-20 1/4” (6.3) 450 (2.00) 330 (1.47) 6.7 (3.04)
N228 3/8”-16 3/8” (9.5) 1100 (4.89) 800 (3.56) 9.3 (4.22)
N225 1/2”-13 1/2” (12.7) 1275 (5.67) 1500 (6.67) 11.6 (5.26)
Open Side Installation
Open Side Installation
35 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Channel Nuts
TN Series - Twirl-Nut™ (Traditional Strut & 4Dimension Strut - Open Side)
• Used in open side only
• Zinc plated steel or Stainless Steel Type 316 (add SS6 to part number)
• Safety Factor 3
* Use 85% load factor for stainless steel
** Use 30% load factor for stainless steel
• Used in open side only
• Zinc plated steel
• Safety Factor 3
NWO Series - Spring Nut without Spring (Traditional Strut & 4Dimension™ Strut - Open Side)
Open Side Installation
Part No. Thread Size Nut Thickness Pull-Out Strength* Slip Strength** Wt./C
In. mm Lbs. kN Lbs. kN Lbs. kg
N224WO 1/4”-20 1/4” (6.3) 450 (2.00) 330 (1.47) 6.7 (3.04)
N228WO 3/8”-16 3/8” (9.5) 1100 (4.89) 800 (3.56) 9.3 (4.22)
N225WO 1/2”-13 1/2” (12.7) 1275 (5.67) 1500 (6.67) 11.6 (5.26)
Part No. Thread Size Nut Thickness Pull-Out Strength Slip Strength Wt./C
In. mm Lbs. kN Lbs. kN Lbs. kg
TN224 1/4”-20 1/4” (6.3) 450 (2.00) 330 (1.47) 6.7 (3.04)
TN228 3/8”-16 3/8” (9.5) 1100 (4.89) 800 (3.56) 9.3 (4.22)
TN225 1/2”-13 1/2” (12.7) 1275 (5.67) 1500 (6.67) 11.6 (5.26)
B-Line series strut systems 36 Eaton
4Dimension Strut
4Dimension Pipe Clamps
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
Universal Pipe Clamps
(Interchangable With 4Dimension™ & Traditional Strut
In Dove-Tail & Open Sides)
4D2000 Series
O.D. Pipe & Conduit Clamps
• Safety Factor of 3 (open side)
Safety Factor of 3 (dove-tail side)
• Add PA to suffix for pre-assembled pipe clamps
• Includes combination recess hex head machine screw
and square nut.
• Material: 12 Ga. (2.6)
ASTM A653 33,000 PSI min. yield
• Standard finishes: ZN, HDG, SS4, SS6, DCU, AL
• See page 39 for UL Listed (U) clamps.
• U.S. Pat. Nos. 9,546,744; 9,746,105; and 9,989,169
• Additional Patent(s) Pending
Design Load 1
Open Side
Design Load 3 Design Loads Design Load 2
Design Load 1
Dove-Tail Side
Design Loads
Design Load 3
Design Load 2
Open Side Installation
Dove-Tail Side Installation
37 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Pipe Clamps
Universal Pipe Clamps
(Interchangable With 4Dimension™ & Traditional Strut
In Dove-Tail & Open Sides)
Part O.D. Tubing EMT Conduit Rigid Conduit Copper Tubing Hardware Clamp Weight * † Wt. Per ** Wt. Per
No. Size Size Size Size Size Per 100 Pair 100 ft. (30.5m) 100 ft. (30.5m)
in. (mm) in. (mm) in. (mm) in. (mm) Lbs. (kg) Lbs. (kg) Lbs. (kg)
4D2023 1/4” (6.3) -- -- -- -- -- -- 1/4”-20 8 (3.6) 15.0† (6.8) -- (--)
4D2024 3/8” (9.5) -- -- -- -- 1/4” (6) 1/4”-20 8 (3.6) 27.4† (12.4) 17.7 (8.0)
4D2025 1/2” (12.7) -- -- -- -- 3/8” (10) 1/4”-20 9 (4.1) 50.2† (22.8) 32.4 (14.7)
4D2026 5/8” (15.9) -- -- -- -- 1/2” (15) 1/4”-20 10 (4.5) 69.5† (31.5) 43.9 (19.0)
4D2000 -- -- 3/8” (10) -- -- -- -- 1/4”-20 10 (4.5) 36.6* (16.6) -- (--)
4D2001 -- -- 1/2” (15) 3/8” (10) -- -- 1/4”-20 10 (4.5) 65.1* (29.5) -- (--)
4D2027 3/4” (19.0) -- -- -- -- -- -- 1/4”-20 10 (4.5) 89.5† (40.6) -- (--)
4D2008 7/8” (22.2) -- -- 1/2” (15) 3/4” (20) 1/4”-20 11 (5.0) 101.1* (45.9) 83.0 (37.6)
4D2002 -- -- 3/4” (20) -- -- -- -- 1/4”-20 11 (5.0) 84.3* (38.2) -- (--)
4D2009 1” (25.4) -- -- 3/4” (20) -- -- 1/4”-20 15 (6.8) 145.8* (66.1) -- (--)
4D2030 11/8” (28.6) -- -- -- -- 1” (25) 1/4”-20 15 (6.8) 166.8† (75.6) 117.7 (53.3)
4D2003 -- -- 1” (25) -- -- -- -- 1/4”-20 16 (7.2) 130.3* (59.1) -- (--)
4D2031 11/4” (31.7) -- -- -- -- -- -- 1/4”-20 16 (7.2) 192.5† (87.3) -- (--)
4D2010 13/8” (34.9) -- -- 1” (25) 11/4” (32) 1/4”-20 17 (7.7) 219.3* (99.5) 156.8 (71.1)
4D2004 11/2” (38.1) 11/4” (32) -- -- -- -- 1/4”-20 19 (8.6) 212.3* (96.3) -- (--)
4D2011 15/8” (41.3) -- -- 11/4” (32) 11/2” (40) 1/4”-20 19 (8.6) 318.3* (144.4) 210.7 (95.6)
4D2005 13/4” (44.4) 11/2” (40) -- -- -- -- 1/4”-20 28 (12.7) 269.8* (122.4) -- (--)
4D2012 17/8” (47.6) -- -- 11/2” (40) -- -- 1/4”-20 30 (13.6) 408.8* (185.4) -- (--)
4D2037 2” (50.8) -- -- -- -- -- -- 1/4”-20 30 (13.6) 370.8† (168.2) -- (--)
4D2038 21/8” (54.0) -- -- -- -- 2” (50) 1/4”-20 32 (14.5) 451.5† (204.8) 336.6 (152.7)
4D2006 -- -- 2” (50) -- -- -- -- 1/4”-20 33 (14.9) 401.8* (182.3) -- (--)
4D2039 21/4” (57.1) -- -- -- -- -- -- 1/4”-20 32 (14.5) 476.8† (216.3) -- (--)
4D2013 23/8” (60.3) -- -- 2” (50) -- -- 1/4”-20 34 (15.4) 479.5* (217.5) -- (--)
4D2041 21/2” (63.5) -- -- -- -- -- -- 1/4”-20 35 (15.9) 553.5† (251.0) -- (--)
4D2042 25/8” (66.7) -- -- -- -- 21/2” (65) 1/4”-20 35 (15.9) 593.5† (269.2) 454.6 (206.2)
4D2043 23/4” (69.8) -- -- -- -- -- -- 1/4”-20 38 (17.2) 634.3† (287.7) -- (--)
4D2014 27/8” (73.0) 21/2” (65) 21/2” (65) -- -- 1/4”-20 38 (17.2) 737.7* (334.6) -- (--)
4D2045 3” (76.2) -- -- -- -- -- -- 1/4”-20 38 (17.2) 874.1† (396.5) -- (--)
4D2046 31/8” (79.4) -- -- -- -- 3” (80) 1/4”-20 39 (17.7) 925.4† (419.7) 628.0 (284.8)
4D2047 31/4” (82.5) -- -- -- -- -- -- 1/4”-20 41 (18.6) 978.0† (443.6) -- (--)
4D2048 33/8” (85.7) -- -- -- -- -- -- 1/4”-20 43 (19.5) 1115.7† (506.1) -- (--)
4D2015 31/2” (88.9) 3” (80) 3” (80) -- -- 1/4”-20 44 (20.0) 1007.0* (456.8) -- (--)
4D2050 35/8” (92.1) -- -- -- -- 31/2” (90) 1/4”-20 54 (24.5) 1233.5† (559.5) 828.1 (375.6)
4D2051 33/4” (95.1) -- -- -- -- -- -- 1/4”-20 57 (25.8) 1294.0† (586.9) -- (--)
4D2052 37/8” (98.4) -- -- -- -- -- -- 1/4”-20 55 (25.0) 1355.6† (614.9) -- (--)
4D2016 4” (101.6) 31/2” (90) 31/2” (90) -- -- 1/4”-20 57 (25.8) 1674.8* (759.6) -- (--)
4D2017 41/2”(114.3) 4” (100) 4” (100) -- -- 1/4”-20 60 (27.2) 1967.0* (892.2) -- (--)
* Weight of conduit/tubing and conductors per 100 ft. (30.5m). Where clamp size fits multiple conduit/pipe sizes the weight is for the heaviest size.
** Weight of copper tubing and water per 100 ft. (30.5m).
† Weight of OD tubing and water per 100 ft. (30.5m) based on the mid-range tubing thicknesses.
B-Line series strut systems 38 Eaton
4Dimension Strut
4Dimension Pipe Clamps
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
Universal Pipe Clamps
(Interchangable With 4Dimension™ & Traditional Strut
In Dove-Tail & Open Sides)
D Safety factor of 3 on open slot and dove tail slot.
Applies to 4D2000 series Universal Pipe Clamps
used in 4D21, 4D22, or traditional strut channels
U For UL installations, follow Table 9 in UL2239.
Part Design Load 1D Design Load 2D Design Load 3D
No. Open Side Dove-Tail Side Open Side Dove-Tail Side Open Side Dove-Tail Side
Lbs. (kN) Lbs. (kN) Lbs. (kN) Lbs. (kN) Lbs. (kN) Lbs. (kN)
4D2023 800 (3.56) 300 (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2024 800 (3.56) 300 (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2025 800 (3.56) 300 (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2026 800 (3.56) 300 (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2000 800U (3.56) 300U (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2001 800U (3.56) 300U (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2027 800 (3.56) 300 (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2008 800U (3.56) 300U (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2002 800U (3.56) 300U (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2009 800U (3.56) 300U (1.33) 80 (0.35) 80 (0.35) 65 (0.29) 65 (0.29)
4D2030 800 (3.56) 400 (1.78) 100 (0.44) 80 (0.35) 100 (0.44) 65 (0.29)
4D2003 800U (3.56) 400U (1.78) 100 (0.44) 80 (0.35) 100 (0.44) 65 (0.29)
4D2031 800 (3.56) 400 (1.78) 100 (0.44) 80 (0.35) 100 (0.44) 65 (0.29)
4D2010 800 (3.56) 400 (1.78) 100 (0.44) 80 (0.35) 100 (0.44) 65 (0.29)
4D2004 800U (3.56) 400U (1.78) 100 (0.44) 80 (0.35) 100 (0.44) 65 (0.29)
4D2011 800U (3.56) 400U (1.78) 100 (0.44) 80 (0.35) 100 (0.44) 65 (0.29)
4D2005 800U (3.56) 400U (1.78) 100 (0.44) 85 (0.38) 100 (0.44) 70 (0.31)
4D2012 800U (3.56) 400U (1.78) 100 (0.44) 85 (0.38) 100 (0.44) 70 (0.31)
4D2037 800 (3.56) 400 (1.78) 100 (0.44) 85 (0.38) 100 (0.44) 70 (0.31)
4D2038 800 (3.56) 400 (1.78) 100 (0.44) 85 (0.38) 100 (0.44) 70 (0.31)
4D2006 800U (3.56) 400U (1.78) 100 (0.44) 85 (0.38) 100 (0.44) 70 (0.31)
4D2039 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2013 1000U (4.45) 400U (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2041 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2042 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2043 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2014 1000U (4.45) 400U (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2045 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2046 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2047 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2048 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2015 1000U (4.45) 400U (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2050 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2051 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2052 1000 (4.45) 400 (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2016 1000U (4.45) 400U (1.78) 80 (0.35) 80 (0.35) 80 (0.35) 70 (0.31)
4D2017 1000U (4.45) 300U (1.33) 60 (0.26) 80 (0.35) 80 (0.35) 70 (0.31)
(O) Open Side
(D) Dove Tail Side(s)
(O)
(O)
(D) (D)
(D) (D)
4D21
4D22
(O)
Traditional
39 B-Line series strut systems Eaton
4Dimension Strut
4Dimension Accessories
4D5000 - Flip Clip™ Trapeze Hanger
(Exclusively for 4Dimension™ Strut)
Installation
(shown in the upright position)
Ensure both top and bottom lock tabs are bent to secure All Threaded Rod.
* Helps ensure the tab on the horizontal side is bent to engage
in the SH slot.
Part No. Rod Size Design Load Wt./C
Lbs. kN Lbs. kg
4D5000-3/8 3/8”-16 770 (3.42) 23.8 (10.79)
4D5000-1/2 1/2”-13 880 (3.56) 25.3 (11.47)
• Mechanically locks in place when used with 4Dimension
SH hole pattern channel *
• Recommend a self-tapping set screw when used in 4Dimension
solid channel or ‘S’ hole pattern channel
• Requires hex nut for location placement on ATR
• Provides more usable area for trapeze application
• Sold in pieces (when used as trapeze hangers, two pieces are required)
• Loading Safety Factor: 2.5
• Zinc plated steel or Stainless Steel Type 316 (add SS6 to part number)
• U.S. Pat. No. 9,574,589
• Additional Patent(s) Pending
Design load when used in pairs as a trapeze solution.
Consult beam loading charts for channel loading.
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
B-Line series strut systems 40 Eaton
4Dimension Strut
4Dimension Accessories
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4D5001 - 2-Piece Turn & Lock Trapeze Hanger
(Exclusively for 4Dimension™ Strut)
• Can be installed in any desired position on the ATR, helping
eliminate the need to thread hex nuts up along ATR
• No additional hardware required
• Used in ‘SH’ slot with open face of channel facing up or down
• Interlocking/alignment tabs on top of part for easy assembly,
installation, and adjustment
• Sold in pairs as shown below (one left side and one right side)
• When used as trapeze hangers, two sets are required
• Loading Safety Factor: 2.5
• U.S. Pat. No. 9,458,952
• For use under U.S. Pat. No. 9,732,887
Installation
Part No. Thread Size Loading Wt./C
Lbs. kN Lbs. kg
4D5001 3/8”-16 1155 (5.14) 24.8 (11.25)
Design load when used in pairs as a trapeze solution.
Consult beam loading charts for channel loading.
Note:
Not to be used in continuous open slot or
solid dove-tail slot.
Left & Right Sides
(one pair as shown)
41 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Accessories
4D5100 - 2 Piece Strengthening Clamp
(Exclusively for 4Dimension™ Strut)
• For use on 4D22 channel only
• Shipped as one piece that can be snapped apart for installation
• Also designed to be used as a rod hanger
• Loading Safety Factor: 2.5
• Pre-Galv steel or Stainless Steel
Type 316 (add SS6 to part number)
• U.S. Pat. No. 9,453,592
• Additional Patent(s) Pending
Installation
Part No. Thread Size Wt./C
Lbs. kg
4D5100-3/8 3/8”-16 44.1 (20.00)
4D5100-1/2 1/2”-13 43.9 (19.91)
Part No. Loading
Lbs. kN
4D5100-3/8 785 (3.49)
4D5100-1/2 935 (4.16)
Design load when used individually.
Consult beam loading charts for channel loading.
B-Line series strut systems 42 Eaton
4Dimension Strut
4Dimension Accessories
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4D280 Post Bases
(Exclusively for 4Dimension™ Strut)
• Standard finishes: ZN, GRN, HDG, SS4
• Used with 4D22 and 4D21
4D280SQ Post Bases
(Exclusively for 4Dimension Strut)
• Standard finishes: ZN, GRN, HDG, SS4
• Used with 4D22 and 4D21
4D280FL Post Bases
(Exclusively for 4Dimension Strut)
• Standard finishes: ZN, GRN, HDG, SS4
• Used with 4D22 and 4D21
Part No. Wt./C
Lbs. kg
4D280FL 296 (134.2)
Part No. Wt./C
Lbs. kg
4D280SQ 365 (165.5)
Part No. Wt./C
Lbs. kg
4D280 365 (165.5)
25/32” (3.9)
25/32” (3.9)
25/32” (3.9)
41/4” (107.9)
41/4” (107.9)
41/4” (107.9)
41/4” (107.9)
4”
(101.6)
4”
(101.6)
4”
(101.6)
3”
(76.2)
6”
(152.4)
6”
(152.4)
6”
(152.4) 6”
(152.4)
61/4” (158.7)
11/2” (38.1)
8”
(203.2)
3/4” (19.0)
Dia. Base
Holes
3/4” (19.0)
Dia. Base
Holes
3/4” (19.0)
Dia. Base
Holes
43 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Accessories
4D441 Series - Universal Beam Clamps
(Interchangable With 4Dimension™ & Traditional Strut)
Tradtional Strut
4Dimension Strut
4D441-21
4D441-22
4D441-22A
4D441-21
4D441-22
4D441-22A
• Designed to be used with 4Dimension and traditional strut
• Design Load 1200 lbs. (5.34kN) when used in pairs
• Safety Factor of 3
• 3/4” (19.0mm) maximum flange thickness
• Recommended torque: 150 in-lbs. (16.9N•m)
• U-Bolt comes pre-assembled with hardware
• Sold in pieces
• Standard finishes: Zinc Plated, HDG, SS4
• Patent Pending
Part No. Fits Channel U-Bolt Length Wt./C
Sizes in. mm Lbs. kg
4D441-21 4D21, B52, B54, B56 35/32” (80.1) 102 (46.3)
4D441-22 4D22 & 4D21A Style 45
/32” (105.5) 107 (48.5)
B22, B24, B26, B52A, B54A, B56A
4D441-22A 4D22 Back-To-Back Style 61
/32” (153.2) 116 (52.6)
B22A, B24A, B26A, B11
For Use With Traditional Strut
For Use With 4Dimension Strut
B-Line series strut systems 44 Eaton
4Dimension Strut
4Dimension Accessories
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4D441 Series - Universal Beam Clamps
(Interchangable With 4Dimension™ & Traditional Strut)
cont.
4D822 & 4D821 - End Caps
Installation
Compatible with Traditional Strut
Ensure that the U-Bolt is fully
secured/nested in beam
clamp slot.
• Sized for 4D22 and 4D21 channels
• Available in: White (W), Black (BLK), Green (GRN),
Yellow (Y), Gray (GRY)
• Material: PVC/Vinyl/Polyvinyl Chloride
• Withstands intermittent temperatures up to 350° F (177°C)
and 200°F (93°C) continuous
• Packaging quantities: 50 per box
Part No. Use With Wt./C
Lbs. kg
4D821 4D21 1.5 (0.68)
4D822 4D22 2.0 (0.91)
4D822 4D821
45 B-Line series strut systems Eaton
4Dimension Strut
Dimensions are in inches unless otherwise noted. Metric dimensions are in parentheses and are in millimeters unless otherwise noted.
4Dimension Photos
Fully leverages all sides for ease of design and construction
4Dimension™ Strut System
4D22 4D21SH with Flip Clip™ 4D22SH with turn & lock
trapeze solution trapeze solution
4Dimension Strut System example Up to 50% reduction in installation and materials
Reduces layers, material, and need for welded back to back channel
Three innovative 4Dimension channel nuts
Universal pipe clamp works on all sides of 4Dimension strut
Overhead racking application
Additional 4Dimension system applications
Superior strength - Lighter weight - Modular design
B-Line series strut systems 46 Eaton
4Dimension Cutter
4Dimension Strut
Hydraulic Strut Cutter
(For 4Dimension™ Strut & Various Traditional Channels)
• Patented esp* hydraulic strut cutter easily cuts 4Dimension strut and a variety of B-Line series strut
profiles to size in seconds
• Produces clean cuts without burrs or sharp edges - no post processing necessary
• Lightweight, black anodized 7075-T651 aluminum frame is portable to the jobsite - 65 lbs. (29.4kg)
• Collapsible handle creates a sturdy operations platform
• 10,000psi hydraulic power source and hose with universal coupling (sold separately) required for operation
• Adjustable material rest* feeds strut sections straight into cutter
• Adjustable backstop* provides for easy production cutting
• Die sets available for cutting 4D21, 4D22, B22, B24, B26, B52, B54, B56 strut profiles
• Die life: thousands of cuts from a single set of blades
*requires two (2) sections of 1” OD tubing - sold separately
* esp (edwards strut pro)
is a product logo used by
Edwards Manufacturing Company
Part No. Description Wt./C
Lbs. kg
Complete esp set includes cutter,
BHSC100 hydraulic pump & hose, material rest, 173 (78.5)
backstop and the three (3)
die sets listed below
Die Sets for Channel
BHSC100B22 B22, B24, B26, B52, B54, B56 13 (5.9)
BHSC1004D22 4D22 13 (5.9)
BHSC1004D21 4D21 13 (5.9)
47 B-Line series strut systems Eaton
Channel
Metal framing channel is cold formed on our modern rolling mills from 12 Ga. (2.6mm), 14 Ga. (1.9mm), and 16 Ga. (1.5mm) low
carbon steel strips. A continuous slot with inturned lips provides the ability to make attachments at any point.
Lengths & Tolerances
All channels excluding ‘SH’ style ± 1/8” (3.2mm) on 10’ (3.05m) and ± 3/16” (4.76mm) on 20’ (6.09m)
All ‘SH’ channels only ± 1/4” (6.35mm) on 10’ (3.05m) and ± 1/2” (12.70mm) on 20’ (6.09m)
Custom lengths are available upon request.
Slots
Slotted series of channels offer full flexibility. A variety of pre-punched slot patterns eliminate the need for precise field
measuring for hole locations. Slots offer wide adjustments in the alignment and bolt sizing.
Holes
A variety of pre-punched 9/16” (14.3 mm) diameter hole patterns are available in our channels. These hole patterns provide an
economical alternative to costly field drilling required for many applications.
Knockouts
When used with series B217-20 Closure Strips, knockout channels can be used to provide an economical U.L. listed surface
raceway. Channels are furnished with 7/8” (22.2 mm) knockouts on 6” (152 mm) centers, allowing for perfect fixture alignment on
spans up to 20’ (6.09 m).
Materials & Finishes (Unless otherwise noted)
Steel: Plain & Pre-galvanized
12 Ga. (2.6), 14 Ga. (1.9) and 16 Ga. (1.5)
Note: A minimum order may apply on
special material and finishes.
Design Load (Steel & Stainless Steel)
The design loads given for strut beam loads
are based on a simple beam condition using
an allowable stress of 25,000 psi. This
allowable stress results in a safety factor
of 1.68. This is based upon virgin steel minimum yield strength of 33,000 psi cold worked during rolling to an average yield
stress of 42,000 psi. For aluminum channel loading multiply steel loading by a factor of 0.38.
Welding
Weld spacing is maintained between 21/2 inches (63.5 mm) and 4 inches (101.6 mm) on center. Through high quality control
testing of welded channels and continuous monitoring of welding equipment, we provide the most consistent combination
channels available today.
Metric
Metric dimensions are shown in parentheses. Unless noted, all metric dimensions are in millimeters.
Finish
Code Finish Specification
PLN Plain ASTM A1011, 33,000 PSI
min. yield
GRN DURA GREEN™
GLV Pre-Galvanized ASTM A653 33,000 PSI
min. yield
HDG Hot-Dipped Galvanized ASTM A123
YZN Yellow Zinc Chromate ASTM B633 SC3 Type II
SS4 Stainless Steel Type 304 ASTM A240
SS6 Stainless Steel Type 316 ASTM A240
AL Aluminum Aluminum 6063-T6
Channel & Combinations
Metal Framing Channels
B-Line series strut systems 48 Eaton
