TM 9-6150-226-13
Wire Size
Torque
AWG
in.-lb
N.m.
18
20-23
2.3-2.6
14-10
33-35
3.7-4
8
38-40
4.3-4.5
6-4
42-45
4.7-5
3-1/0
45-50
5-5.7
4/0
275
31
Table G-2.
SELF-LOCKING NUT BREAKAWAY TORQUE VALUES
Minimum Breakaway
Minimum Breakaway
Thread Size
Torque in.-lb (N.m)
Thread Size
Torque in.-lb (N.m)
10-32
2.0 (0.23)
5/8-18
32.0 (3.62)
1/4-28
3.5 (0.40)
3/4-16
50.0 (5.65)
5/16-24
6.5 (0.73)
7/8-14
70.0 (7.91)
3/8-24
9.5 (1.07)
1-12
90.0 (10.17)
7/16-20
14.0 (1.58)
1-1/8-12
117.0 (13.22)
1/2-20
18.0 (2.03)
1-1/4-12
143.0 (16.16)
9/16-18
24.0 (2.71)
NOTE
To determine breakaway torque, thread nut onto
screw or bolt until at least two threads stick
out.
Nut shall not make contact with a mating
part.
Stop the nut.
Torque necessary to begin
turning nut again is the breakaway torque. Do
not reuse self-locking nuts that do not meet
minimum breakaway torque.
G-2