
| 螺纹规格d | d2 | d3 | d1 |
| 1.6 | 5 | - | 1.8 |
| 2 | 6 | - | 2.4 |
| 2.5 | 8 | - | 2.9 |
| 3 | 9 | - | 3.4 |
| 4 | 10 | - | 4.5 |
| 5 | 11 | - | 5.5 |
| 6 | 13 | - | 6.6 |
| 8 | 18 | - | 9 |
| 10 | 22 | - | 11 |
| 12 | 26 | 16 | 13.5 |
| 14 | 30 | 18 | 15.5 |
| 16 | 33 | 20 | 17.5 |
| 18 | 36 | 22 | 20 |
| 20 | 40 | 24 | 22 |
| 22 | 43 | 26 | 24 |
| 24 | 48 | 28 | 26 |
| 27 | 53 | 33 | 30 |
| 30 | 61 | 36 | 33 |
| 33 | 66 | 39 | 36 |
| 36 | 71 | 42 | 39 |
| 39 | 76 | 45 | 42 |
| 42 | 82 | 48 | 45 |
| 45 | 89 | 51 | 48 |
| 48 | 98 | 56 | 52 |
| 52 | 107 | 60 | 56 |
| 55 | 112 | 68 | 62 |
| 60 | 118 | 72 | 66 |
| 64 | 125 | 76 | 70 |
