Hex bolts
DIN 931 – Hexagon head bolts, partially threaded
DIN 931 · comparable to ISO 4014. Dimensions from the HBS technical datasheet – in stock, with EN 10204 3.1 / 3.2 certificates.
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Dimensions
DIN 931 dimension table.
Dimensions in mm
| Thread d | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M36 | M42 | M48 | M56 | M64 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | – | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 |
| k | nom. | 2 | 2.8 | 3.5 | 4 | 5.3 | 6.4 | 7.5 | 8.8 | 10 | 11.5 | 12.5 | 14 | 15 | 17 | 18.7 | 22.5 | 26 | 30 | 35 | 40 |
| c | min. | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 |
| max. | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | |
| r | min. | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1.2 | 1.6 | 2 | 2 |
| s | DIN 931 | 5.5 | 7 | 8 | 10 | 13 | 17 | 19 | 22 | 24 | 27 | 30 | 32 | 36 | 41 | 46 | 55 | 65 | 75 | 85 | 95 |
| ISO 4014 ¹ | – | – | – | – | – | 16 | 18 | 21 | – | – | – | 34 | – | – | – | – | – | – | – | – | |
| e | min., DIN 931 | 6.01 | 7.66 | 8.79 | 11.05 | 14.38 | 18.9 | 21.1 | 24.49 | 26.75 | 30.14 | 33.53 | 35.72 | 39.98 | 45.2 | 50.85 | 60.79 | 71.3 | 82.6 | 93.56 | 104.86 |
| min., ISO 4014 ¹ | – | – | – | – | – | 17.77 | 20.03 | 23.36 | – | – | – | 37.72 | – | – | – | – | – | – | – | – | |
| b | l ≤ 125 | 12 | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 42 | 46 | 50 | 54 | 60 | 66 | 78 | 90 | 102 | – | – |
| 125 < l ≤ 200 | – | – | 22 | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | 66 | 72 | 84 | 96 | 108 | – | – | |
| l > 200 | – | – | – | – | – | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73 | 79 | 85 | 97 | 109 | 121 | 137 | 153 | |
- d
- Nominal thread diameter
- P
- Thread pitch, coarse
- k
- Head height
- s
- Width across flats
- e
- Width across corners
- b
- Thread length
¹ ISO 4014 differs from DIN 931 only in the width across flats of M10, M12, M14 and M22 (s = 16, 18, 21 and 34 mm, with the e values shown). Head height k and all other sizes are identical.
Grades and finishes: hbsfasteners.nl/products/hex-bolts.
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