TM 9-2330-324-14&P
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TORQUE LIMITS—Continued
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Table 1. Torque Limits.
CURRENT USAGE
MUCH USED
MUCH USED
USED AT TIMES
USED AT TIMES
QUALITY OF
MATERIAL
INDETERMINATE
MINIMUM
COMMERCIAL
MEDIUM
COMMERCIAL
BEST
COMMERCIAL
SAE GRADE NUMBER
1 OR 2
5
6 OR 7
8
CAPSCREW HEAD
MARKINGS
MANUFACTURER’S
MARKS MAY VARY
THESE ARE ALL SAE
GRADE 5
(3 LINE)
CAPSCREW
BODY SIZE
inches – thread
TORQUE
lb-ft (N•m)
TORQUE
lb-ft (N•m)
TORQUE
lb-ft (N•m)
TORQUE
lb-ft (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)
1/2
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)
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)
990 (1342)
