Metric Number Of Coils
| Nominal Diameter | Pitch (mm) | Drill Bit Diameter (mm) | Drilling Diameter | Tap | Number of Coils in the Free State | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min. | max. | Min Outer Diameter | 0.5d | 0.75d | 1d | 1.5d | 2d | 2.5d | 3d | |||
| M2 | 0.4 | 2.1 | 2.09 | 2.18 | 2.52 | - | - | 3.5 | 5.9 | 7.8 | 10.0 | 12.0 |
| M2.5 | 0.45 | 2.6 | 2.60 | 2.70 | 3.08 | - | - | 3.5 | 5.9 | 8.1 | 10.5 | 12.9 |
| M3 | 0.5 | 3.2 | 3.11 | 3.22 | 3.65 | - | - | 3.9 | 6.3 | 8.7 | 11.1 | 13.5 |
| M3.5 | 0.6 | 3.7 | 3.63 | 3.76 | 4.28 | - | - | 3.7 | 6.3 | 8.7 | 11.2 | 13.3 |
| M4 | 0.7 | 4.2 | 4.15 | 4.29 | 4.91 | - | - | 3.7 | 6.1 | 8.4 | 10.9 | 13.2 |
| M5 | 0.8 | 5.2 | 5.17 | 5.33 | 6.04 | - | - | 4.3 | 6.9 | 9.7 | 12.3 | 14.8 |
| M6 | 1.0 | 6.3 | 6.22 | 6.41 | 7.30 | - | - | 4.2 | 6.9 | 9.6 | 12.3 | 14.6 |
| M7 | 1.0 | 7.3 | 7.22 | 7.41 | 8.30 | - | - | 5.3 | 8.2 | 11.1 | 14.3 | 17.4 |
| M8x1 | 1.0 | 8.3 | 8.22 | 8.41 | 9.30 | - | - | 6.1 | 9.5 | 12.9 | 16.5 | 19.9 |
| M8 | 1.25 | 8.4 | 8.27 | 8.48 | 9.62 | - | - | 4.7 | 7.4 | 10.6 | 13.5 | 16.4 |
| M9 | 1.25 | 9.4 | 9.27 | 9.48 | 10.62 | - | - | 5.3 | 8.6 | 11.9 | 15.3 | 18.1 |
| M10x1 | 1.0 | 10.25 | 10.22 | 10.41 | 11.30 | - | - | 7.6 | 12.1 | 16.3 | 20.7 | 25.0 |
| M10x1.25 | 1.25 | 10.4 | 10.27 | 10.48 | 11.62 | - | - | 6.0 | 9.7 | 13.1 | 16.9 | 20.1 |
| M10 | 1.5 | 10.5 | 10.32 | 10.56 | 11.95 | - | - | 5.0 | 8.1 | 11.2 | 14.2 | 17.2 |
| M11 | 1.5 | 11.5 | 11.32 | 11.56 | 12.95 | - | - | 5.6 | 9.0 | 12.3 | 15.7 | 18.9 |
| M12x1 | 1.0 | 12.3 | 12.22 | 12.41 | 13.30 | - | - | 9.3 | 14.5 | 19.5 | 24.8 | 30.0 |
| M12x1.25 | 1.25 | 12.4 | 12.27 | 12.48 | 13.62 | - | - | 7.4 | 11.6 | 15.9 | 20.7 | 24.8 |
| M12x1.5 | 1.5 | 12.5 | 12.32 | 12.56 | 13.95 | - | - | 6.2 | 9.8 | 13.5 | 15.7 | 20.8 |
| M12 | 1.75 | 12.5 | 12.38 | 12.64 | 14.27 | - | - | 5.2 | 8.4 | 11.7 | 14.7 | 18.0 |
| M14x1.25 | 1.25 | 14.4 | 14.27 | 14.48 | 15.62 | 3.6 | 6.2 | 8.4 | 13.3 | 18.2 | 23.1 | 28.0 |
| M14x1.5 | 1.5 | 14.5 | 14.32 | 14.56 | 15.95 | - | 5.1 | 7.1 | 11.2 | 15.3 | 19.0 | 23.2 |
| M14 | 2.0 | 14.5 | 14.43 | 14.73 | 16.60 | - | - | 5.2 | 8.3 | 11.5 | 14.6 | 17.6 |
| M16x1.5 | 1.5 | 16.5 | 16.32 | 16.56 | 17.95 | - | 5.9 | 8.3 | 13.0 | 17.7 | 22.4 | - |
| M16 | 2.0 | 16.5 | 16.43 | 16.73 | 18.60 | - | - | 6.1 | 9.7 | 13.3 | 16.8 | 19.6 |
| M18x1.5 | 1.5 | 18.5 | 18.32 | 18.56 | 19.95 | 4.2 | 7.0 | 9.5 | 14.9 | 20.2 | - | - |
| M18x2 | 2.0 | 18.5 | 18.43 | 18.73 | 20.60 | 3.1 | 5.1 | 7.1 | 11.2 | 15.1 | 19.1 | 23.2 |
| M18 | 2.5 | 18.75 | 18.54 | 18.90 | 21.25 | 2.3 | 3.8 | 5.6 | 9.0 | 12.3 | 15.5 | 18.8 |
| M20x1.5 | 1.5 | 20.5 | 20.32 | 20.56 | 21.95 | 4.9 | 7.9 | 10.7 | 16.7 | 22.4 | - | - |
| M20x2 | 2.0 | 20.5 | 20.43 | 20.73 | 22.60 | 3.5 | 5.8 | 8.0 | 12.5 | 16.8 | - | - |
| M20 | 2.5 | 20.75 | 20.54 | 20.90 | 23.25 | 2.7 | 4.5 | 6.3 | 10.0 | 13.7 | 17.4 | 21.0 |
| M22x1.5 | 1.5 | 22.5 | 22.32 | 22.56 | 23.95 | 5.5 | 8.6 | 11.7 | 18.1 | 24.5 | - | - |
| M22x2 | 2.0 | 22.5 | 22.43 | 22.73 | 24.60 | 3.9 | 6.4 | 8.7 | 13.6 | 18.4 | - | - |
| M22 | 2.5 | 22.75 | 22.54 | 22.90 | 25.25 | 3.0 | 5.0 | 6.9 | 10.9 | 15.0 | 18.8 | - |
| M24x1.5 | 1.5 | 24.5 | 24.32 | 24.56 | 25.95 | 6.0 | 9.5 | 12.9 | 19.8 | 26.7 | - | - |
| M24x2 | 2.0 | 24.5 | 24.43 | 24.73 | 26.60 | 4.3 | 7.0 | 9.6 | 15.0 | 20.2 | - | - |
| M24 | 3.0 | 24.75 | 24.65 | 25.05 | 27.90 | 2.6 | 4.5 | 6.2 | 10.0 | 14.0 | 17.5 | - |
| M26x1.5 | 1.5 | 26.5 | 26.32 | 26.56 | 27.95 | 6.5 | 10.3 | 14.0 | 21.6 | 29.1 | - | - |
| M27x1.5 | 1.5 | 27.5 | 27.32 | 27.56 | 28.95 | 6.7 | 10.7 | 14.6 | 22.6 | 30.0 | - | - |
| M27x2 | 2.0 | 27.5 | 27.43 | 27.73 | 29.60 | 5.1 | 7.9 | 10.8 | 16.8 | 22.6 | - | - |
| M27 | 3.0 | 27.75 | 27.65 | 28.05 | 30.90 | 3.2 | 5.0 | 7.1 | 11.4 | 15.4 | - | - |
| M28x1.5 | 1.5 | 28.5 | 28.32 | 28.56 | 29.95 | 7.1 | 11.1 | 15.2 | 23.3 | 31.4 | - | - |
| M30x1.5 | 1.5 | 30.5 | 30.22 | 30.56 | 31.95 | 7.8 | 12.2 | 16.5 | 25.3 | 34.0 | - | - |
| M30x2 | 2.0 | 30.5 | 30.43 | 30.73 | 32.60 | 5.7 | 9.0 | 12.3 | 19.0 | 25.5 | - | - |
| M30 | 3.5 | 31.0 | 30.76 | 31.21 | 34.55 | 3.0 | 4.9 | 7.0 | 11.0 | 14.9 | - | - |
| M33x2 | 2.0 | 33.5 | 33.43 | 33.73 | 35.60 | 6.4 | 10.1 | 13.7 | 21.2 | 28.4 | - | - |
| M33 | 3.5 | 34.0 | 33.76 | 34.21 | 37.55 | 3.4 | 5.6 | 7.8 | 12.2 | 16.5 | - | - |
| M34x1.5 | 1.5 | 34.5 | 34.32 | 34.56 | 35.95 | 9.2 | 12.3 | 19.4 | 29.0 | 39.5 | - | - |
| M36x1.5 | 1.5 | 36.5 | 36.32 | 36.56 | 37.95 | 8.2 | 11.2 | 18.8 | 26.7 | 37.8 | - | - |
| M36x2 | 2.0 | 36.5 | 36.43 | 36.73 | 38.60 | 6.8 | 10.3 | 14.1 | 21.9 | 31.1 | - | - |
| M36x3 | 3.0 | 37.0 | 36.65 | 37.05 | 39.90 | 4.4 | 7.2 | 9.9 | 15.3 | 20.5 | - | - |
| M36 | 4.0 | 37.0 | 36.87 | 37.34 | 41.20 | 3.2 | 5.0 | 7.0 | 11.1 | 15.2 | - | - |
| M39x3 | 3.0 | 40.0 | 39.65 | 40.05 | 42.90 | 4.9 | 7.8 | 10.8 | 16.8 | 22.5 | - | - |
| M39 | 4.0 | 40.0 | 39.87 | 40.34 | 44.20 | - | 5.5 | 7.7 | 12.2 | 16.6 | - | - |
| M42x3 | 3.0 | 43.0 | 42.65 | 43.05 | 45.90 | 5.4 | 8.5 | 11.7 | 18.1 | 24.0 | - | - |
| M42 | 4.5 | 43.0 | 42.98 | 43.50 | 47.85 | - | 5.8 | 7.3 | 11.6 | 15.6 | - | - |
| M45x3 | 3.0 | 46.0 | 45.65 | 46.05 | 48.90 | 5.7 | 9.1 | 12.5 | 19.3 | 26.2 | - | - |
| M45 | 4.5 | 46.0 | 45.98 | 46.50 | 50.85 | - | 5.6 | 8.0 | 12.4 | 16.8 | - | - |
*All information is strictly informative