DIN 444 dimensions — Swing bolts
2017-04 edition, current · 7 sizes, M5 – M20 see the cross-reference →
✓We supply to DIN 444. Name it on your order.
DIN 444 dimensions
| Thread size | PThread Pitch (mm) | bThread Length (mm) | d4Eye Inside Diameter (mm) | d3Eye Outside Diameter (mm) | k/sEye Thickness (mm) | BBody Diameter (mm) | Clearance holefine / medium / coarse (mm) | Tap drillcoarse pitch (mm) |
|---|---|---|---|---|---|---|---|---|
| M5 | 0.8 | 32 | 5 | 12 | 6 | 5 | 5.3 / 5.5 / 5.8 | 4.2 |
| M6 | 1 | 32 | 6 | 14 | 7 | 6 | 6.4 / 6.6 / 7 | 5 |
| M8 | 1.25 | 32 | 8 | 18 | 9 | 8 | 8.4 / 9 / 10 | 6.8 |
| M10 | 1.5 | 40 | 10 | 20 | 12 | 10 | 10.5 / 11 / 12 | 8.5 |
| M12 | 1.75 | 40 | 12 | 25 | 14 | 12 | 13 / 13.5 / 14.5 | 10.2 |
| M16 | 2 | 50 | 16 | 32 | 17 | 16 | 17 / 17.5 / 18.5 | 14 |
| M20 | 2.5 | 63 | 18 | 40 | 22 | 20 | 21 / 22 / 24 | 17.5 |
7 of 7 sizes shown. Clearance holes are fine / medium / coarse to ISO 273; tap drill is for the coarse pitch.





