Nuts & Hardware
Material: Atkore channel nuts are manufactured from mild steel cold rolled coil, and after stamping and machining operations are completed, they are case hardened, assuring positive biting action into the inturned edge of the Atkore channel. Screws conform to SAE J429 GR 2 (exceeds ASTM A307). Proof Load 55KSI, Tensile Load 74 KSI
Bolt Size 1⁄4" & 5⁄16"
Channel Nut ASTM
A1011 SS GR33
3⁄8", 7⁄16" & 1⁄2"
A576 GR1015 Modified
5⁄8" & 3⁄4"
Design Bolt Torque
A36 or A675 GR60
7⁄8"
A36
Bolt Size
Rec. Torque
Max. Torque
(ft/lb)
(N•m)
(ft/lb)
(N•m)
Finishes: All Channel nuts are available in: ꞏ Electro-galvanized (EG), conforming to ASTM B633 type III SC1 ꞏ Hot-dipped galvanized (HG), conforming to ASTM A153 ꞏ Plain (PL) ꞏ Unistrut Defender™ (DF), conforming to ASTM A1059 Hardware items such as Hex Nuts bolts and washers are Electro-Galvanized (EG), ASTM B633 Type III SC1 finish, unless otherwise noted. Many hardware items are also available in stainless steel. Consult factory for ordering information. Threads: Atkore nuts and bolts are manufactured to meet the Unified Screw Thread standard, ANSI B1.1, coarse series (UNC) class 2.
1⁄4 "-20 5⁄16 "-18 3⁄8 "-16 1⁄2 "-13 5⁄8 "-11 3⁄4 "-10
6
8
7
9
11 19 50
15 26 68
15 25 70
20 34 95
100 125
136 170
125 135
170 183
Dimensions: Imperial dimensions are illustrated in inches. Metric dimensions are shown in parenthesis or as noted. Unless noted, all metric dimensions are in millimeters and rounded to one decimal place. Many Atkore nuts, bolts and hardware items are also available in standard metric dimensions. Consult factory for ordering information.
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