TM 9-2320-260-34-2
Table F-1. Torque Limits for Dry Fasteners.
CAPSCREW HEAD MARKINGS
SUE
SAE GRADE
SAE GRADE
SAE GRADE
SAE GRADE
No. 1 or 2
No. 5
NO.6 or 7
NO. 8
DIA.
POUND NEWTON
POUND NEWTON
POUND NEWTON
POUND NEWTON
DIA.
THREADS
METERS
INCHES
FEET
METERS
FEET
METERS
FEET
FEET
METERS
PER INCH
MILLIMETERS
5
6.78
8
10.85
10
13.56
12
1/4
16.27
6.35
20
--
--
6.35
6
8.14
10
13.56
14
18.98
1/4
28
7.94
11
14.92
23.05
19
25.76
17
24
5/16
18
32.54
--
--
13
17.63
19
25.76
7.94
5/16
24
27
36.61
9.53
18
24.41
31
42.04
34
46.10
44
59.66
3/8
16
9.53
--
--
20
27.12
35
47.46
3/8
24
49
66.44
74.58
70
7/16
11.11
28
37.97
49
66.44
55
94.92
14
--
--
11.11
74.58
7/16
30
40.68
55
78
105.77
20
12.70
39
52.88
75
101.70
85
115.26
105
142.38
1/2
13
--
--
41
55.60
115.26
12.70
85
1/2
20
120
162.72
14.29
51
69.16
162.72
149.16
155
9/16
12
110
120
210.18
74.58
9/16
14.29
55
120
162.72
--
18
170
230.52
15.88
63
85.43
150
203.40
167
226.45
210
5/8
11
284.76
95
15.88
128.82
170
230.52
--
5/8
18
240
325.44
19.05
105
142.38
366.12
280
379.68
270
10
375
508.50
3/4
19.05
115
155.94
295
400.02
420
3/4
16
569.52
160
216.96
596.64
395
535.62
440
605
7/8
9
22.23
820.38
175
237.30
435
589.86
--
--
675
915.30
7/8
14
22.23
318.66
894.96
910
590
800.04
660
1233.96
25.40
235
1
8
339.00
660
894.96
--
--
990
1342.44
25.40
250
14
1
--
28.58
800-
1084.8-
1280-
1735.7-
1-1/8
1440
880
1193.3
1952.6
31.75
1820-
2467.9-
1-1/4
--
2712.0
--
--
34.93
1460-
1979.8-
--
2380-
3227.3-
1-3/8
1680
2278.1
2720
3688.3
38.10
1940-
2630.6-
3160
4285.0-
1-1/2
2200
2983.2
3560
4827.4
F-2
