DIN 912 / ISO 4762 socket head cap screw: dimensions and CAD files
Hexagon socket head cap screw with coarse metric thread, from M3 to M24. Choose the size and the length to get its dimensions and CAD files.
DIN 912 / ISO 4762 dimensions
| Size | Pmm | bref, mm | dkmax, mm | kmax, mm | snom, mm | tmin, mm | emin, mm | damax, mm | rmin, mm |
|---|---|---|---|---|---|---|---|---|---|
| M3 | 0.5 | 18 | 5.5 | 3 | 2.5 | 1.3 | 2.873 | 3.6 | 0.1 |
| M4 | 0.7 | 20 | 7 | 4 | 3 | 2 | 3.443 | 4.7 | 0.2 |
| M5 | 0.8 | 22 | 8.5 | 5 | 4 | 2.5 | 4.583 | 5.7 | 0.2 |
| M6 | 1 | 24 | 10 | 6 | 5 | 3 | 5.723 | 6.8 | 0.25 |
| M8 | 1.25 | 28 | 13 | 8 | 6 | 4 | 6.863 | 9.2 | 0.4 |
| M10 | 1.5 | 32 | 16 | 10 | 8 | 5 | 9.149 | 11.2 | 0.4 |
| M12 | 1.75 | 36 | 18 | 12 | 10 | 6 | 11.429 | 13.7 | 0.6 |
| M14 | 2 | 40 | 21 | 14 | 12 | 7 | 13.716 | 15.7 | 0.6 |
| M16 | 2 | 44 | 24 | 16 | 14 | 8 | 15.996 | 17.7 | 0.6 |
| M20 | 2.5 | 52 | 30 | 20 | 17 | 10 | 19.437 | 22.4 | 0.8 |
| M24 | 3 | 60 | 36 | 24 | 19 | 12 | 21.734 | 26.4 | 0.8 |
Dimensions in millimetres unless stated. Select a row to load its CAD files above.
DIN 912 vs ISO 4762: what changed
DIN 912 was withdrawn and replaced by ISO 4762 (published in Germany as DIN EN ISO 4762). For the sizes on this page the dimensions did not change, so a screw ordered as DIN 912 and one ordered as ISO 4762 have the same head, socket and thread.
DIN 912 thread length
Short screws are threaded up to the head. On longer ones the thread runs for the reference length b given in the table, and the rest of the shank is plain. The DXF and DWG files show the thread as thin lines at the minor diameter on the THREAD layer.
Socket head cap screw dimensions: head, key and mass
The head is as high as the thread is wide: k is 6 mm at M6 and 8 mm at M8, with head diameters of 10 and 13 mm. The hexagon socket s takes a 5 mm key at M6 and a 6 mm key at M8. Where two catalogues agree, the selector also shows the approximate mass of each screw; it is the catalogue value, because the CAD thread is cosmetic and the model weight would be slightly off. For a lower head with the same thread, see DIN 7984.
DIN 912 screws: common questions
- What are the dimensions of an M6 socket head cap screw?
- An ISO 4762 or DIN 912 M6 screw has a head up to 10 mm in diameter and 6 mm high, a 5 mm hexagon socket at least 3 mm deep, and a 1 mm coarse pitch thread.
- Is DIN 912 the same as ISO 4762?
- Yes, for the sizes on this page. ISO 4762 replaced DIN 912 without changing the head, socket or thread, so both names are used for the same screw.