ISO 4027 dimensions — Hexagon socket set screws with cone point
- Edition
- dimensions from the 2003 edition · current edition ISO 4027:2026
DIN 914 redirects here. ISO 4027 supersedes it in modified form — the two are related but not identical. DIN 914 states the relationship as “ISO 4027 modified”. DIN 914 additionally records M1.4, M1.8, M14, M18, M22, which this table does not carry. We supply those sizes to the DIN 914 drawing — send it with the enquiry.
| Size | PThread pitch | sHex socket size | eSocket across corners | dtPoint diameter | tSocket depth, short length | |||
|---|---|---|---|---|---|---|---|---|
| min | max | min | max | min | min | |||
| M1.6 | 0.35 | 0.7 | 0.71 | 0.724 | 0.809 | 0.4 | 0.7 | 1.5 |
| M2 | 0.4 | 0.9 | 0.887 | 0.913 | 1.011 | 0.5 | 0.8 | 1.7 |
| M2.5 | 0.45 | 1.3 | 1.275 | 1.3 | 1.454 | 0.65 | 1.2 | 2 |
| M3 | 0.5 | 1.5 | 1.52 | 1.58 | 1.733 | 0.75 | 1.2 | 2 |
| M4 | 0.7 | 2 | 2.02 | 2.08 | 2.303 | 1 | 1.5 | 2.5 |
| M5 | 0.8 | 2.5 | 2.52 | 2.58 | 2.873 | 1.25 | 2 | 3 |
| M6 | 1 | 3 | 3.02 | 3.08 | 3.443 | 1.5 | 2 | 3.5 |
| M8 | 1.25 | 4 | 4.02 | 4.095 | 4.583 | 2 | 3 | 5 |
| M10 | 1.5 | 5 | 5.02 | 5.14 | 5.723 | 2.5 | 4 | 6 |
| M12 | 1.75 | 6 | 6.02 | 6.14 | 6.863 | 3 | 4.8 | 8 |
| M16 | 2 | 8 | 8.025 | 8.175 | 9.149 | 4 | 6.4 | 10 |
| M20 | 2.5 | 10 | 10.025 | 10.175 | 11.429 | 5 | 8 | 12 |
| M24 | 3 | 12 | 12.032 | 12.212 | 13.716 | 6 | 10 | 15 |
Dimensions from ISO 4027:2003. The current edition is ISO 4027:2026.