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Torque Table
The following suggested tightening torques provide an excellent starting point for determining torque requirements. Remember, you may need
to vary these numbers somewhat based on the individual joint or the amount of fastener lubrication.
This table is offered as the suggested maximum torque values for
threaded products and is only a guide.
Torque Values = inch-lbs
| Bolt Size |
18-8 Stainless Steel |
Brass |
Aluminum 2024-T4 |
316 Stainless Steel |
Nylon |
| 2 - 56 |
2.5 |
2.0 |
1.4 |
2.6 |
0.44 |
| 4 - 40 |
5.2 |
4.3 |
2.9 |
5.5 |
1.19 |
| 4 - 48 |
6.6 |
5.4 |
3.6 |
6.9 |
|
| 6 - 32 |
9.6 |
7.9 |
5.3 |
10.1 |
2.14 |
| 6 - 40 |
12.1 |
9.9 |
6.6 |
12.7 |
|
| 8 - 32 |
19.8 |
16.2 |
10.8 |
20.7 |
4.30 |
| 8 - 36 |
22.0 |
18.0 |
12.0 |
23.0 |
|
| 10 - 24 |
22.8 |
18.6 |
13.8 |
23.8 |
6.61 |
| 10 - 32 |
31.7 |
25.9 |
19.2 |
33.1 |
8.20 |
| 1/4" - 20 |
75.2 |
61.5 |
45.6 |
78.8 |
16.00 |
| 1/4" - 28 |
94.0 |
77.0 |
57.0 |
99.0 |
20.80 |
| 5/16" - 18 |
132.0 |
107.0 |
80.0 |
138.0 |
34.90 |
| 5/16" - 24 |
142.0 |
116.0 |
86.0 |
147.0 |
|
| 3/8" - 16 |
236.0 |
192.0 |
143.0 |
247.0 |
|
| 3-8" - 24 |
259.0 |
212.0 |
157.0 |
271.0 |
|
| 7/16" - 14 |
376.0 |
317.0 |
228.0 |
393.0 |
|
| 7/16" - 20 |
400.0 |
357.0 |
242.0 |
418.0 |
|
| 1/2" - 13 |
517.0 |
422.0 |
313.0 |
542.0 |
|
| 1/2" - 20 |
541.0 |
443.0 |
328.0 |
565.0 |
|
| 9/16" - 12 |
682.0 |
558.0 |
413.0 |
713.0 |
|
| 9/16" - 18 |
752.0 |
615.0 |
456.0 |
787.0 |
|
| 5/8" - 11 |
1110.0 |
907.0 |
715.0 |
1160.0 |
|
| 5/8" - 18 |
1244.0 |
1016.0 |
798.0 |
1301.0 |
|
| 3/4" - 10 |
1530.0 |
1249.0 |
980.0 |
1582.0 |
|
| 3/4" - 16 |
1490.0 |
1220.0 |
958.0 |
1558.0 |
|
| 7/8" - 9 |
2328.0 |
1905.0 |
1495.0 |
2430.0 |
|
| 7/8" - 14 |
2318.0 |
1895.0 |
1490.0 |
2420.0 |
|
| 1" - 8 |
3440.0 |
2815.0 |
2205.0 |
3595.0 |
|
| 1"- 14 |
3110.0 |
2545.0 |
1995.0 |
3250.0 |
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