Andrew 174100, Installation And Maintenance Manual

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3.2 Standard Torque Values for Assembly
Unless otherwise specified elsewhere in this manual, tighten all hardware for the torque values shown in
Table 3-4.
Table 3-4
Standard Torque Values for Assembly
SIZE SAE GRADE 2 A325 or GRADE 5 STEEL STAINLESS STEEL
1/4-20 UNC 5.5 ft-lb 8.0 ft-lb 6.5 ft-lb
M6-1.0-6g 5.5 ft-lb 8.0 ft-lb 6.5 ft-lb
5/16-18 UNC 11 ft-lb 17 ft-lb 11.5 ft-lb
318-16 UNC 20 ft-lb 30 ft-lb 20 ft-lb
1/2-13
UNC
50 ft-lb 75 ft-lb 45 ft-lb
5/8-11 UNC 100 ft-lb 150 ft-Ib 97 ft-lb
3/4-10 UNC 175 ft-lb 260 ft-lb 132 ft-lb
7/8
-
9 UNC 165 ft-lb 430 ft
-
lb 202 ft-lb
Grade 2 bolts have no grade marks A325 and Grade 5 bolts have identification grade marks