Nut Turn Tension
| Bolt Length | Both faces normal to bolt axis | One face sloped not more than 1:20, other face normal to bolt axis | Both faces sloped not more than 1:20 from normal to bolt axis |
|---|---|---|---|
| Not more than 4d | 1⁄3 turn (120deg) | 1⁄2 turn (180deg) | 2⁄3 turn (240deg) |
| More than 4d but not more than 8d | 1⁄2 turn | 2⁄3 turn | 5⁄6 turn (300deg) |
| More than 8d but not more 12d | 2⁄3 turn | 5⁄6 turn | 1 turn (360deg) |
| *When bolt length exceeds 12d, nut rotation shall be determined by testing using a tension calibrator. | |||