TM 9-6115-660-13&P
APPENDIX H
TORQUE LIMITS
SAE Grade Number
1 o r2
5
6 or 7
8
Quality of
Indeterminate
Minimum
Medium
Best
Material
Commercial
Commercial
Commercial
Capscrew Head
Markings
NOTE
Head marking may vary with different manufacturers.
Capscrew Body Size
Torque
Torque
Torque
Torque
(Inches ) - (Thread)
Ft Lb (N.m)
Ft Lb (N.m)
Ft Lb (N.m)
Ft Lb (N.m)
1/4
20
5
(7)
8
(11)
10
(14)
12
(16)
28
6
(8)
10
(14)
14
(19)
5/16
18
11
(15)
17
(23)
19
(26)
24
(33)
24
13
(18)
19
(26)
27
(37)
3/8
16
18
(24)
31
(42)
34
(46)
44
(60)
24
20
(27)
35
(47)
49
(66)
7/16
14
28
(38)
49
(66)
55
(75)
70
(95)
20
30
(41)
55
(75)
78
(106)
112
13
39
(53)
75
(102)
85
(115)
105
(142)
20
41
(56)
85
(115)
120
(163)
9/1 6
12
51
(69)
110
(149)
120
(163)
155
(210)
18
55
(75)
120
(1
63)
170
(231)
5/8
11
83
(113)
150
(203)
167
(226)
210
(285)
18
95
(129)
170
(231)
240
(325)
3/4
10
105
(142)
270
(366)
280
(380)
375
(508)
16
115
(156)
295
(400)
420
(569)
7/8
9
160
(217)
395
(536)
440
(597)
605
(820)
14
175
(237)
435
(590)
675
(915)
1
8
235
(319)
590
(800)
660
(895)
910 (1234)
14
250
(339)
660
(895)
9 9 0 ( 1 3 42
CAUTION
If replacement capscrews are of a higher grade than originally supplied, use torque
specifications for that placement. This will prevent equipment damage due to over
torquing.
NOTE
Always use the torque values listed above when specific torque values are not available.
H-1/(H-2 Blank)
