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TM 10-3930-669-34
D-5. U.S. STANDARD TORQUE VALUES.
Table D-2. U.S. Standard Torque Values
Minimum Breakaway
Minimum Breakaway
Minimum Breakaway
Torque Value
Torque Value
Torque Value
S.A.E. Grade 2
S.A.E. Grade 5
S.A.E. Grade 8
Thread Size
U.S.
Metric
U.S.
Metric
U.S.
Metric
1/4-20
5 lb-ft
7 Nm
8 lb-ft
11 Nm
12 lb-ft
16 Nm
1/4-28
6 lb-ft
8 Nm
10 lb-ft
14 Nm
14 lb-ft
19 Nm
5/16-18
11 lb-ft
15 Nm
17 lb-ft
23 Nm
24 lb-ft
33 Nm
5/16-24
13 lb-ft
18 Nm
19 lb-ft
26 Nm
27 lb-ft
37 Nm
3/8-16
20 lb-ft
27 Nm
30 lb-ft
41 Nm
45 lb-ft
61 Nm
3/8-24
22 lb-ft
30 Nm
35 lb-ft
47 Nm
50 lb-ft
68 Nm
7/16-14
30 Ib-ft
41 Nm
50 lb-ft
68 Nm
70 lb-ft
95 Nm
7/16-20
35 lb-ft
47 Nm
55 lb-ft
75 Nm
80 lb-ft
108 Nm
1/2-13
50 lb-ft
68 Nm
75 lb-ft
102 Nm
105 lb-ft
142 Nm
1/2-20
55 lb-ft
75 Nm
85 lb-ft
115 Nm
120 lb-ft
163 Nm
9/16-12
70 lb-ft
95 Nm
110 lb-ft
149 Nm
155 lb-ft
210 Nm
9/16-18
80 lb-ft
108 Nm
120 lb-ft
163 Nm
170 lb-ft
230 Nm
5/8-11
100 lb-ft
136 Nm
150 lb-ft
203 Nm
210 lb-ft
285 Nm
5/8-17
110 lb-ft
149 Nm
170 lb-ft
230 Nm
240 lb-ft
325 Nm
3/4-10
170 lb-ft
230 Nm
270 lb-ft
366 Nm
375 lb-ft
508 Nm
3/4-16
190 lb-ft
258 Nm
300 lb-ft
407 Nm
420 lb-ft
569 Nm
7/8-9
165 lb-ft
224 Nm
430 lb-ft
583 Nm
610 lb-ft
827 Nm
7/8-14
180 lb-ft
244 Nm
475 lb-ft
644 Nm
670 lb-ft
908 Nm
1-8
250 lb-ft
339 Nm
645 lb-ft
875 Nm
910 lb-ft
1,234 Nm
1-12
270 lb-ft
366 Nm
705 lb-ft
956 Nm
1,000 Ib-ft
1,356 N-m
1-14
280 lb-ft
380 Nm
720 lb-ft
976 Nm
1,015 lb-ft
1,376 Nm
D-4
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