E A V E T O W E R
Chief Industries, Inc. 800-359-7600
P/N - 621144
Page 14
Hardware Torque
All components are assembled using SAE grade hex head bolts with corresponding washers
and nuts. Bolts are marked with radial lines on the bolt head as shown in the following
illustration.
Do not substitute any other bolt type or grade
.
Use only the bolts supplied by Chief. The
substitution of bolts from other sources is not permitted and will void the warranty
.
When installing hardware the minimum and maximum torque values shown below must be
followed. All hardware must seat tight against the corresponding bin component.
Bolt Diameter
Grade 2
Grade 5
Grade 8
Grade 8.2
1/4" (.63cm)
6 ft.-lbs.
10 ft.-lbs.
14 ft.-lbs.
14 ft.-lbs.
5/16” (.79cm)
12 ft.-lbs.
19 ft.-lbs.
29 ft.-lbs.
29 ft.-lbs.
3/8” (.95cm)
20 ft.-lbs.
25 ft.-lbs.
47 ft.-lbs.
47 ft.-lbs.
3/4" (1.90cm)
155 ft.-lbs.
240 ft.-lbs.
380 ft.-lbs.
380 ft.-lbs.
1” (2.54cm)
-
-
910 ft.-lbs.
-
Please note the following wrench / socket size to be used on the corresponding hardware:
Bolt Size
Head Size
Nut Size
1/4" (.63cm)
7/16” wrench
7/16” wrench
5/16” (.79cm)
1/2” wrench
1/2" wrench
3/8” (.95cm)
9/16” wrench
9/16” wrench
3/4" (1.90cm)
1-
1/8” wrench
1-1/8" wrench
1” (2.54cm)
1-
1/2” wrench
1-
1/2” wrench
