General Torque Specifications
General torque specifications are only to be used when specific torque specifications for a fastener are not provided. These specifications are for clean unlubricated threads.
| Bolt Diameter (mm) |
Conventional or "4" marked bolt | "7" marked bolt | ||
| N-m | lb-ft | N-m | lb-ft | |
| 4 | 1-2 | 0.7-1.5 | 1.5-3 | 1.0-2.0 |
| 5 | 2-4 | 1.5-3.0 | 3-6 | 2.0-4.5 |
| 6 | 4-7 | 3.0-5.0 | 8-12 | 6.0-8.5 |
| 8 | 10-16 | 7.0-11.5 | 18-28 | 13.0-20.0 |
| 10 | 22-35 | 16.0-25.5 | 40-60 | 29.0-43.5 |
| 12 | 35-55 | 25.5-40.0 | 70-100 | 50.5-72.5 |
| 14 | 50-80 | 36.0-58.0 | 110-160 | 79.5-115.5 |
| 16 | 80-130 | 58.0-94.0 | 170-250 | 123.0-181.0 |
| 18 | 130-190 | 94.0-137.5 | 200-280 | 144.5-202.5 |
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