TM 5-6675-348-13&P
Table J-3. Torque Limits for Dry Fasteners (Continued)
Size
SAE Grade
SAE Grade
SAE Grade
SAE Grade
No. 2
No. 5
No. 6 or 7
No. 8
Threads
mm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
Dia. In.
per In.
1-1/8
7
28.58
300
407
800
1085
1120
1519
1280
1736
1-1/8
12
28.58
340
461
880
1193
1260
1709
1440
1953
1-1/4
7
31.75
420
570
1120
1519
1580
2142
1820
2468
1-1/4
12
31.75
460
624
1240
1681
1760
2387
2000
2712
1-3/8
6
34.93
560
759
1460
1980
2080
2820
2380
3227
1-3/8
12
34.93
640
868
1680
2278
2380
3227
2720
3688
1-1/2
6
38.10
740
1003
1940
2631
2780
3770
3160
4285
1-1/2
12
38.10
840
1139
2200
2983
3100
4204
3560
4827
Size
SAE Grade
SAE Grade
SAE Grade
SAE Grade
No. 2
No. 5
No. 6 or 7
No. 8
Threads
mm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
lb-ft
Nm
Dia. In.
per In.
1/4
20
6.35
4
6
6
8
8
11
9
12
1/4
28
6.35
5
7
7
9
9
12
10
14
5/16
18
7.94
8
11
13
18
16
22
18
24
5/16
24
7.94
9
12
14
19
18
24
20
27
3/8
16
9.53
15
20
23
31
30
41
35
47
3/8
24
9.53
17
23
25
34
30
41
35
47
7/16
14
11.11
24
33
35
47
45
61
55
75
7/16
20
11.11
25
34
40
54
50
68
60
81
1/2
13
12.70
35
47
55
75
70
95
80
108