Stel World GMBH Metric Thread Pitch Chart
| Coarse | Fine | |||||
| Diameter | Pitch | Diameter | Pitch | |||
| 1st choice | 2nd choice | – | 1st choice | 2nd choice | 1st choice | 2nd choice |
| M2 | — | 0.4 | — | — | — | — |
| M2.5 | — | 0.45 | — | — | — | — |
| M3 | — | 0.5 | — | — | — | — |
| M4 | — | 0.7 | — | — | — | — |
| M5 | — | 0.8 | — | — | — | — |
| M6 | — | 1 | — | — | — | — |
| — | M7 | 1 | — | — | — | — |
| M8 | — | 1.25 | M8 | — | 1 | — |
| M10 | — | 1.5 | M10 | — | 1.25 | 1 |
| M12 | — | 1.75 | M12 | — | 1.25 | 1.5 |
| — | M14 | 2 | M14 | 1.5 | — | |
| M16 | — | 2 | M16 | — | 1.5 | — |
| — | M18 | 2.5 | M20 | M18 | 1.5 | 2 |
| M20 | — | 2.5 | — | 1.5 | 2 | |
| — | M22 | 2.5 | M22 | 1.5 | 2 | |
| M24 | — | 3 | M24 | — | 2 | — |
| — | M27 | 3 | M27 | 2 | — | |
| M30 | — | 3.5 | M30 | — | 2 | — |
| — | M33 | 3.5 | — | — | — | — |
| M36 | — | 4 | — | — | — | — |
| — | M39 | 4 | — | — | — | — |
| M33 | — | 4.5 | — | — | — | — |
| — | M45 | 4.5 | — | — | — | — |
| M39 | — | 5 | — | — | — | — |
| — | M52 | 5 | — | — | — | — |
| M56 | — | 5.5 | — | — | — | — |