DIN 914 / ISO 4027 cone point set screw: dimensions
Hexagon socket set screw with cone point, from M3 to M24.
DIN 914 / ISO 4027 set screw dimensions
| Size | Pmm | snom, mm | emin, mm | tmin, mm | tshort l, mm | dtmax, mm |
|---|---|---|---|---|---|---|
| M3 | 0.5 | 1.5 | 1.73 | 2 | 1.2 | 0.75 |
| M4 | 0.7 | 2 | 2.3 | 2.5 | 1.5 | 1 |
| M5 | 0.8 | 2.5 | 2.87 | 3 | 2 | 1.25 |
| M6 | 1 | 3 | 3.44 | 3.5 | 2 | 1.5 |
| M8 | 1.25 | 4 | 4.58 | 5 | 3 | 2 |
| M10 | 1.5 | 5 | 5.72 | 6 | 4 | 2.5 |
| M12 | 1.75 | 6 | 6.86 | 8 | 4.8 | 3 |
| M16 | 2 | 8 | 9.15 | 10 | 6.4 | 4 |
| M20 | 2.5 | 10 | 11.43 | 12 | 8 | 5 |
| M24 | 3 | 12 | 13.72 | 15 | 10 | 6 |
Dimensions in millimetres unless stated. Select a row to load its CAD files above.
DIN 914 socket depth and point
The set screw is threaded over its whole length and the length includes the point. The socket is less deep in the shortest lengths of each size; the table gives both depths.
In the small sizes DIN 914 has a sharp point, while ISO 4027 has a small flat dt at the tip. The model draws a sharp point.
DIN 914 cone point set screw: when to use it
The cone point seats in a dimple drilled into the shaft or part, which locks the position and keeps the screw from walking. For other points and the common grub screw sizes, see the flat point set screw.