ISO 8673 dimensions — Hexagon Regular Nut, Fine Pitch
- Edition
- 2023 edition, current
| Size | PThread pitch | sWidth across flats | mNut height | eWidth across corners |
|---|---|---|---|---|
| max | min | |||
| M8 | 1 | 13 | 6.8 | 14.38 |
| M10 | 1 | 16 | 8.4 | 17.77 |
| M10 | 1.25 | 16 | 8.4 | 17.77 |
| M12 | 1.25 | 18 | 10.8 | 20.03 |
| M12 | 1.5 | 18 | 10.8 | 20.03 |
| M14 | 1.5 | 21 | 12.8 | 23.36 |
| M16 | 1.5 | 24 | 14.8 | 26.75 |
| M18 | 1.5 | 27 | 15.8 | 29.56 |
| M18 | 2 | 27 | 15.8 | 29.56 |
| M20 | 1.5 | 30 | 18 | 32.95 |
| M20 | 2 | 30 | 18 | 32.95 |
| M22 | 1.5 | 34 | 19.4 | 37.29 |
| M22 | 2 | 34 | 19.4 | 37.29 |
| M24 | 2 | 36 | 21.5 | 39.55 |
| M27 | 2 | 41 | 23.8 | 45.2 |
| M30 | 2 | 46 | 25.6 | 50.85 |
| M33 | 2 | 50 | 28.7 | 55.37 |
| M36 | 3 | 55 | 31 | 60.79 |
| M39 | 3 | 60 | 33.4 | 66.44 |
Dimensions from ISO 8673:2023, the current edition.