DIN 6923 hex flange nut: dimensions from M5 to M20
Hexagon nut with an integral flange that acts as a washer, from M5 to M20. Pick a size to get its dimensions and CAD files.
DIN 6923 flange nut dimensions
| Size | Pmm | snom, mm | mmax, mm | dcmax, mm | cmin, mm | emin, mm | dwmin, mm |
|---|---|---|---|---|---|---|---|
| M5 | 0.8 | 8 | 5 | 11.8 | 1 | 8.79 | 9.8 |
| M6 | 1 | 10 | 6 | 14.2 | 1.1 | 11.05 | 12.2 |
| M8 | 1.25 | 13 | 8 | 17.9 | 1.2 | 14.38 | 15.8 |
| M10 | 1.5 | 15 | 10 | 21.8 | 1.5 | 16.64 | 19.6 |
| M12 | 1.75 | 18 | 12 | 26 | 1.8 | 20.03 | 23.8 |
| M14 | 2 | 21 | 14 | 29.9 | 2.1 | 23.36 | 27.6 |
| M16 | 2 | 24 | 16 | 34.5 | 2.4 | 26.75 | 31.9 |
| M20 | 2.5 | 30 | 20 | 42.8 | 3 | 32.95 | 39.9 |
Dimensions in millimetres unless stated. Select a row to load its CAD files above.
Flange nut dimensions
The flange of diameter dc spreads the load like a washer, so no separate washer is needed. The height m includes the flange, and c is its minimum thickness at the edge. The flange nut is as tall as the thread size: 8 mm at M8, 10 mm at M10. Flange nuts are also sold with a serrated bearing face that bites into the part; the CAD files show the plain flange.
DIN 6923 spanner sizes
DIN 6923 uses the same spanner as the other hex nuts in most sizes, with one exception: at M10 it is 15 mm across flats, not 16 or 17. Keep that in mind when you pick the tools for an assembly that mixes nuts. The matching screw is the DIN 6921 hex flange screw.
DIN 6923 flange nuts: common questions
- What are the dimensions of an M10 flange nut?
- A DIN 6923 M10 nut is 15 mm across flats and up to 10 mm high, with a flange up to 21.8 mm in diameter.