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STANDARD STEEL BOLT TORQUE VALUES * |
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SAE GRADE |
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| BOLT SIZE | 1 OR 2
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Dia. - Threads Per In. |
Ft.Lbs | kgm | Nm | ||||||
| 1/4" - 20 | 5 | 0.7 | 6.8 | ||||||
| 1/4" - 28 | 6 | 0.8 | 8.1 | ||||||
| 5/16" - 18 | 11 | 1.5 | 14.9 | ||||||
| 5/16"- 24 | 13 | 1.8 | 17.6 | ||||||
| 3/8" - 16 | 18 | 2.5 | 24.4 | ||||||
| 3/8" - 24 | 20 | 2.75 | 27.1 | ||||||
| 7/16" - 14 | 28 | 3.8 | 37 | ||||||
| 7/16" - 20 | 30 | 4.2 | 40.7 | ||||||
| 1/2" - 13 | 39 | 5.4 | 52.8 | ||||||
| 1/2" - 20 | 41 | 5.7 | 55.6 | ||||||
| 9/16" - 12 | 51 | 7 | 69.2 | ||||||
| 9/16" - 18 | 55 | 7.6 | 74.5 | ||||||
| 5/8" - 11 | 83 | 11.5 | 112.5 | ||||||
| 5/8" - 18 | 95 | 13.1 | 128.8 | ||||||
| 3/4" - 10 | 105 | 14.5 | 142.3 | ||||||
| 3/4" - 16 | 115 | 15.9 | 155.9 | ||||||
| 7/8"- 9 | 160 | 22.1 | 216.9 | ||||||
| 7/8" - 14 | 175 | 24.2 | 237.2 | ||||||
| 1" - 8 | 236 | 32.5 | 318.6 | ||||||
| 1" - 14 | 250 | 34.6 | 338.9 | ||||||
SAE GRADE |
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| BOLT SIZE | 5
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6 OR 7
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8
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Dia. - Threads Per In. |
Ft.-Lbs | kgm | NM | Ft. -Lbs | kgm | NM | Ft. -Lbs | kgm | NM |
| 1/4" - 20 | 1.1 | 10.8 | 10 | 1.4 | 13.5 | 12 | 1.67 | 16 | |
| 1/4" - 28 | 10 | 1.4 | 13.6 | 14 | 1.93 | 19 | |||
| 5/16" - 18 | 17 | 2.3 | 23 | 19 | 2.6 | 25.8 | 24 | 3.3 | 33 |
| 5/16"- 24 | 19 | 2.6 | 25.7 | 26 | 3.6 | 35 | |||
| 3/8" - 16 | 31 | 4.3 | 42 | 34 | 4.7 | 46 | 44 | 6.1 | 60 |
| 3/8" - 24 | 35 | 4.8 | 47.5 | 49 | 6.8 | 66 | |||
| 7/16" - 14 | 49 | 6.8 | 66.4 | 55 | 7.6 | 74.5 | 71 | 9.8 | 96 |
| 7/16" - 20 | 55 | 7.6 | 74.5 | 77 | 10.6 | 104 | |||
| 1/2" - 13 | 75 | 10.4 | 101.7 | 85 | 11.75 | 115.2 | 104 | 14.4 | 141 |
| 1/2" - 20 | 85 | 11.7 | 115.2 | 121 | 16.7 | 164 | |||
| 9/16" - 12 | 110 | 15.2 | 149 | 120 | 16.6 | 162.7 | 154 | 21 | 209 |
| 9/16" - 18 | 120 | 16.6 | 162.7 | 170 | 23.5 | 230 | |||
| 5/8" - 11 | 150 | 20.7 | 203.3 | 167 | 23 | 226.5 | 209 | 28.9 | 283 |
| 5/8" - 18 | 170 | 23.5 | 230.5 | 236 | 32.6 | 319 | |||
| 3/4" - 10 | 270 | 37.3 | 366 | 280 | 38.7 | 379.6 | 374 | 51.7 | 507 |
| 3/4" - 16 | 295 | 40.8 | 400 | 418 | 57.8 | 566 | |||
| 7/8"- 9 | 395 | 54.6 | 535.5 | 440 | 60.9 | 569.5 | 605 | 83.6 | 820 |
| 7/8" - 14 | 435 | 60.1 | 589.7 | 671 | 92.7 | 909 | |||
| 1" - 8 | 590 | 81.6 | 799.9 | 660 | 91.3 | 894.8 | 902 | 124.6 | 1222 |
| 1" - 14 | 660 | 91.3 | 849.8 | 979 | 135 | 1327 | |||
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* Values based on clean and dry threads. Reduce values by 10% if threads are oiled. Example: 30 ft.-lbs. X .10 = 3 ft-lbs. Oiled value of 27 ft.-lbs. should be used. To convert: Ft.-lbs to in.-lbs: 30 ft.-lbs x 12= 360 in.-lbs Ft.-lbs to NM: 30 ft.-lbs x 1.3556= 40.668 NM Ft.-lbs to kgm: 30 ft.-lbs x .138185525= 4.146 kgm |
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