ASTM A490
| Bolt Size | TPI | Tension (lbs) | Tightening Torque Range (ft lbs) (Min - Max) | ||
|---|---|---|---|---|---|
| Min | Max | Plain | Lubricated | ||
| 1⁄2 | 13 | 15,000 | 18,000 | 125 - 150 | 63 - 75 |
| 5⁄8 | 11 | 24,000 | 29,000 | 250 - 302 | 125 - 151 |
| 3⁄4 | 10 | 35,000 | 42,000 | 438 - 525 | 219 - 263 |
| 7⁄8 | 9 | 49,000 | 59,000 | 715 - 860 | 357 - 430 |
| 1 | 8 | 64,000 | 77,000 | 1,067 - 1,283 | 533 - 642 |
| 11⁄8 | 7 | 80,000 | 96,000 | 1,500 - 1,800 | 750 - 900 |
| 11⁄4 | 7 | 102,000 | 122,000 | 2,125 - 2,542 | 1,063 - 1,271 |
| 13⁄8 | 6 | 121,000 | 145,000 | 2,773 - 3,323 | 1,386 - 1,661 |
| 11⁄2 | 6 | 148,000 | 178,000 | 3,700 - 4,450 | 1,850 - 2,225 |