Hex nuts
DIN 439-A – Hexagon thin nuts, form A (without chamfer)
DIN 439-1 (form A) · product grade B · M1.6 – M10. Dimensions from the HBS technical datasheet – in stock, with EN 10204 3.1 / 3.2 certificates.
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Dimensions
DIN 439-A dimension table.
Dimensions in mm
| Thread d | Pitch P | Fine thread | Width across flats s | Width across corners e min. | Height m | |
|---|---|---|---|---|---|---|
| max. | min. | |||||
| M1.6 | 0.35 | – | 3.2 | 3.28 | 1 | 0.6 |
| M2 | 0.4 | – | 4 | 4.18 | 1.2 | 0.8 |
| M2.5 | 0.45 | – | 5 | 5.31 | 1.6 | 1.2 |
| M3 | 0.5 | – | 5.5 | 5.88 | 1.8 | 1.4 |
| M3.5 | 0.6 | – | 6 | 6.44 | 2 | 1.6 |
| M4 | 0.7 | – | 7 | 7.5 | 2.2 | 1.8 |
| M5 | 0.8 | – | 8 | 8.63 | 2.7 | 2.3 |
| M6 | 1 | – | 10 | 10.89 | 3.2 | 2.72 |
| M8 | 1.25 | M8 × 1 | 13 | 14.2 | 4 | 3.52 |
| M10 | 1.5 | M10 × 1 | 17 | 18.72 | 5 | 4.52 |
- d
- Nominal thread diameter
- P
- Thread pitch, coarse
- s
- Width across flats
- e
- Width across corners, min.
Range. DIN 439-1 (form A, without chamfer, product grade B) covers M1.6 to M10. Larger thin nuts: DIN 439-B (chamfered) / ISO 4035.
Configure at hbsfasteners.nl/products/hex-nuts.
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