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