TM 5-4310-393-14
APPENDIX G
TORQUE LIMITS
NOTE
When torquing a fastener, select a wrench whose range fits the required torque
value. A torque wrench is most accurate from 25% to 75% of its stated range. A
wrench with a stated range of 0 to 100 will be most effective from 25 to 75 foot-
pounds. The accuracy of the reading will decrease as you approach the 0 or the 100
mark.
Torque wrench setting: General for hex and Hex head screws
Thread:
M 4
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs Ft
4/1.03
1.3/0.96
1.7/1.25
2.8/2.06
3.9/2.88
4.7/3 47
Thread:
M 5
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs Ft
2.8/2.07
2.6/1.92
3.4/2.51
5.5/4.06
7.8/5.75
9.3/6.86
Thread:
M 6
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs Ft
4.8/3.54
4.5/3.32
6.0/4.43
9.5./7.00
13/9.59
16/11.8
Thread:
M 8
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs Ft
12/8.85
11/8.11
14/10.33
23/16.96
33/24.34
39/28.77
Thread:
M 10
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs Ft
23/16.96
22/16.23
29/21.39
46/33.93
65/47.94
78/57.53
Thread:
M 12
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque. Nm/lbs Ft
40/29.50
38/28.03
50/36.88
80/59.00
110/81.13
140/103.26
Thread:
M 14
Tensile quality:
4.8
5.6
5.8
8.8
10.9
2.9
Torque: Nm/lbs ft
64/47.20
60/44.25
80/59.0
130/95.88
180/132.76
220/162.27
Thread:
M 16
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs Ft:
97/71.54
91/67.12
120/88.57
190/140.14
270/199.14
330/243.40
Thread:
M 18
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs. Ft.
130/95.88
130/95.88
170/125.88
270/199.14
380/280.28
450/331.91
Thread:
M 20
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs ft
190/140.14
180/132.76
240/177.02
380/280.28
530/390.91
640/472.05
Thread:
M 22
Tensile quality:
4.8
5.6
5.8
8.8
10.9
12.9
Torque: Nm/lbs. ft.
260/191.77
240/177.02
320/236.02
510/376.16
720/531.05
860/634.31
Nm : 1,3558 = lbs Ft
Nm : 9,81 (10)= kpm
G-1
