TM 9-2320-361-20
Table D-2. Torque Limits for Wet Fasteners.
CAPSCREW HEAD MARKINGS
TORQUE
SIZE
SAE GRADE
SAE GRADE
SAE GRADE
SAE GRADE
NO. 1 or 2
NO. 5
NO. 6 or 7
NO. 8
DIA.
THREADS
MILLIMETERS
POUND NEWTON
POUND NEWTON
POUND NEWTON
POUND NEWTON
INCHES
PER INCH
FEET
METERS
FEET
METERS
FEET
METERS
FEET
METERS
1/4
20
6.35
4.9
6.6
7.2
9.76
9.0
12.20
10.8
14.64
1/4
28
6.35
5.4
7.32
9.0
12.20
-
-
12.6
17.09
5/16
18
7.94
9.9
13.42
15.3
20.75
17.1
23.19
21.6
29.29
5/16
24
7.94
11.7
15.87
17.1
23.19
-
-
24.3
32.95
3/8
16
9.53
16.2
21.97
27.9
37.83
30.6
41.49
39.6
53.70
3/8
24
9.53
18.0
24.41
31.5
42.71
-
-
44.1
59.80
7/16
14
11.11
25.2
34.17
44.1
59.80
49.5
67.12
63.0
85.43
7/16
20
-
27.0
36.61
49.5
67.12
-
-
70.2
95.19
1/2
13
12.70
35.1
47.60
67.5
91.53
76.5
103.73
94.5
128.14
1/2
20
-
36.9
50.04
76.5
103.73
-
-
108.0
146.45
9/16
12
14.29
45.9
62.24
99.0
134.24
108.0
146.45
139.5
189.16
9/16
18
-
49.5
67.12
108.0
146.45
-
-
153.0
207.47
5/8
11
15.88
56.7
76.89
135.0
183.06
150.3
203.81
189.0
256.28
5/8
18
-
85.5
115.94
153.0
207.47
-
-
216.0
292.90
3/4
10
19.05
94.5
128.14
243.0
329.51
252.0
341.71
337.5
457.65
3/4
16
-
103.5
140.35
265.5
360.02
-
-
378.0
512.57
7/8
9
22.23
144.0
195.26
355.5
482.06
396.0
536.98
544.5
738.34
7/8
14
-
157.5
213.57
391.5
530.87
-
-
607.5
823.77
1
8
25.40
211.5
286.79
531.0
720.04
594.0
805.46
819.0
1110.56
1
14
-
225.0
305.10
594.0
805.46
-
-
891.0
1208.20
1-1/8
-
28.58
-
-
720.0-
976.32-
-
-
1152.0-
1562.11-
792.0
1073.95
1296.0
1757.38
1-1/4
-
31.75
-
-
-
-
-
-
1638.0-
2221.13
1800.0
2440.80
1-3/8
-
34.93
-
-
1314.0-
1781.78-
-
-
2142.0-
2904.55-
1512.0
2050.27
2448.0
3319.49
1-1/2
-
38.10
-
-
1746.0-
2367.58-
-
-
2844.0-
3856.5-
1980.0
2684.88
3204.0
4344.62
D-3