| Nominal Dimension d1 | S | b | d3 | d2 |
| -0.1 | -0.1 | min | min | |
| 20 | 1.2 | 1.75 | 21 | 20.6 | 21 | 1.2 | 1.75 | 22 | 21.6 |
| 22 | 1.2 | 1.75 | 23 | 22.6 | 23 | 1.2 | 1.75 | 24 | 23.6 |
| 24 | 1.2 | 1.75 | 25.2 | 24.8 | 26 | 1.2 | 1.75 | 26.2 | 25.8 |
| 26 | 1.2 | 1.75 | 27.2 | 26.8 | 27 | 1.2 | 1.75 | 28.2 | 27.8 |
| 28 | 1.2 | 1.75 | 29.2 | 28.8 | 29 | 1.2 | 1.75 | 30.2 | 29.8 |
| 30 | 1.5 | 2.3 | 31.4 | 31 | 31 | 1.5 | 2.3 | 32.4 | 32 |
