Размеры дюймовой резьбы USA UNF, угол 60° — ASA B 1.1.
1 дюйм = 25,4 мм
| Номинальный размер дюймовой резьбы | Диаметр в мм | Количество витков на дюйм | |
| UNC | UNF | ||
| №0 | 1.524 | 64 | 80 |
| №1 | 1.778 | 64 | 72 |
| №2 | 2.184 | 56 | 64 |
| №3 | 2.515 | 48 | 56 |
| №4 | 2.845 | 40 | 48 |
| №5 | 3.175 | 40 | 44 |
| №6 | 3.505 | 32 | 40 |
| №8 | 4.165 | 32 | 36 |
| №10 | 4.826 | 24 | 32 |
| №12 | 5.486 | 24 | 28 |
| 1/4 | 6.350 | 20 | 28 |
| 5/16 | 7.937 | 18 | 24 |
| 3/8 | 9.525 | 16 | 24 |
| 7/16 | 11.113 | 14 | 20 |
| 1/2 | 12.700 | 13 | 20 |
| 9/16 | 14.288 | 12 | 18 |
| 5/8 | 15.875 | 11 | 18 |
| 3/4 | 19.060 | 10 | 16 |
| 7/8 | 22.226 | 9 | 14 |
| 1 | 25.401 | 8 | 12 |
| 1 1/8 | 28.576 | 7 | 12 |
| 1 1/4 | 31.751 | 7 | 12 |
| 1 3/8 | 34.926 | 6 | 12 |
| 1 1/2 | 38.101 | 6 | 12 |
| 1 5/8 | 41.277 | 5.5 | |
| 1 3/4 | 44.452 | 5 | |
| 1 7/8 | 47.627 | 5 | |
| 2 | 50.802 | 4.5 | |
| 2 1/4 | 57.152 | 4.5 | |
| 2 1/2 | 63.502 | 4 | |
| 2 3/4 | 69.853 | 4 | |
| 3 | 76.203 | 4 | |