| Nominal Diameter | Pitch | Bolt Head Thickness | Bolt Across Flats | Nut Thickness | |
|---|---|---|---|---|---|
| M3 | 3 | 0.5 | 2.125 | 5.5 | 2.4 |
| M4 | 4 | 0.7 | 2.925 | 7 | 3.2 |
| M5 | 5 | 0.8 | 3.65 | 8 | 4 |
| M6 | 6 | 1 | 4.15 | 10 | 5 |
| M8 | 8 | 1.25 | 5.65 | 13 | 6.5 |
| M10 | 10 | 1.5 | 7.18 | 17 | 8 |
| M12 | 12 | 1.75 | 8.18 | 19 | 10 |
| M16 | 16 | 2 | 10.18 | 24 | 13 |
| M20 | 20 | 2.5 | 13.215 | 30 | 16 |
| M24 | 24 | 3 | 15.215 | 36 | 19 |
| M30 | 30 | 3.5 | 19.26 | 46 | 24 |
| M36 | 36 | 4 | 23.26 | 55 | 29 |