TM 9-6115-668-13
APPENDIX G
TORQUE LIMITS
G.1 BOLTS.
Bolt alloy: K18-8(A4)-70, DIN 931/933, in lengths up to 8 x nominal thread diameter (d) at room tem-
perature, strength class 70 (normal), work-hardened.
NOTE
Coefficient of friction µ = 0.16
Coarse-pitch thread
M5
M6
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
M30
Tightening torque,
ft-lb (Nm)
3.5 (4.7)
6 (8.2)
14.5 (19.6)
28.8 (39)
49.4 (67)
78.2 (106)
119.5 (162)
166 (225)
233 (3 16)
174 (236)
224 (304)
327 (443)
446 (605)
G.2 STUDS.
Stud alloy: A1Mg 3
Coarse-pitch thread
Tightening torque,
ft-lb (Nm)
M3
M 4
M 5
0.6 (0.8)
1.5 (2.0)
2.6 (3.5)
G-1 (G-2 blank)
