ISO 14580 dimensions — Hexalobular socket cheese head screws
2011 edition, current · 9 sizes, M2 – M10 see the cross-reference →
✓We supply to ISO 14580. Name it on your order.
ISO 14580 dimensions
| Thread size | PThread Pitch (mm) | dkHead Diameter (mm) | dkHead Diameter (min) (mm) | kNominal Head Height (mm) | kHead Height (min) (mm) | rRadius (min) (mm) | Recess Number | mType H Recess Width (ref.) (mm) | tSocket Depth (max) (mm) | tSocket Depth (min) (mm) | bThread Length (mm) | Clearance holefine / medium / coarse (mm) | Tap drillcoarse pitch (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M2 | 0.4 | 3.8 | 3.62 | 1.55 | 1.41 | 0.1 | 6 | 1.75 | 0.84 | 0.71 | 25 | 2.2 / 2.4 / 2.6 | 1.6 |
| M2.5 | 0.45 | 4.5 | 4.32 | 1.85 | 1.71 | 0.1 | 8 | 2.4 | 0.91 | 0.78 | 25 | 2.7 / 2.9 / 3.1 | 2.05 |
| M3 | 0.5 | 5.5 | 5.32 | 2.4 | 2.26 | 0.1 | 10 | 2.8 | 1.27 | 1.01 | 25 | 3.2 / 3.4 / 3.6 | 2.5 |
| M3.5 | 0.6 | 6 | 5.82 | 2.6 | 2.46 | 0.1 | 15 | 3.35 | 1.33 | 1.07 | 38 | 3.7 / 3.9 / 4.2 | 2.9 |
| M4 | 0.7 | 7 | 6.78 | 3.1 | 2.92 | 0.2 | 20 | 3.95 | 1.66 | 1.27 | 38 | 4.3 / 4.5 / 4.8 | 3.3 |
| M5 | 0.8 | 8.5 | 8.28 | 3.65 | 3.47 | 0.2 | 25 | 4.5 | 1.91 | 1.52 | 38 | 5.3 / 5.5 / 5.8 | 4.2 |
| M6 | 1 | 10 | 9.78 | 4.4 | 4.1 | 0.25 | 30 | 5.6 | 2.29 | 1.9 | 38 | 6.4 / 6.6 / 7 | 5 |
| M8 | 1.25 | 13 | 12.73 | 5.8 | 5.5 | 0.4 | 45 | 7.95 | 3.05 | 2.66 | 38 | 8.4 / 9 / 10 | 6.8 |
| M10 | 1.5 | 16 | 15.73 | 6.9 | 6.54 | 0.4 | 50 | 8.95 | 3.43 | 3.04 | 38 | 10.5 / 11 / 12 | 8.5 |
9 of 9 sizes shown. Clearance holes are fine / medium / coarse to ISO 273; tap drill is for the coarse pitch.
