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TM 5-2420-222-34
CAUTION
If replacement capscrews are of higher grade than originally supplied, use torque
specifications for the original. This will prevent equipment damage due to
overtorquing.
Table D-1. Torque Limits.
Current Usage
Much Used
Much Used
Used at Times
Used at Times
Quality of
Minimum
Medium
Best
Material
Indeterminate
Commercial
Commercial
Commercial
SAE Grade Number
Capscrew Head
Markings
Manufacturer’s
marks
may vary
These
are
all
SAE
Grade 5 (3 line)
Capscrew Body Size
Inches - Thread
Torque
Ib.-ft. (Nom)
Torque
Ib.-ft. (Nom)
Torque
Ib.-ft. (Nom)
Torque
Ib.-ft. (Nom)
¼
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)
½
13
39
(53)
75
(102)
85
(115)
105
(142)
20
41
(56)
85
(115)
120
(163)
9/16
12
51
(69)
110
(149)
120
(163)
155
(210)
18
55
(75)
120
(163)
170
(231)
5/8
11
83
(113)
150
(203)
167
(226)
210
(285)
18
95
(129)
170
(231)
240
(325)
¾
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)
990
(1342)
D-2
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