DIN EN 24015 Hexagon Bolts, Reduced Shank, Product Grade B (1991) defines hexagon head screws with coarse thread in product grade B. These screws are commonly used in general engineering applications where high precision is not required.
Dimensions of DIN EN 24015 Hexagon Bolts, Reduced Shank, Product Grade B
| Screw Thread (d) | M3 | M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | M20 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| P (Pitch) | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | |
| b | L ≤ 125 | 12 | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 46 |
| 125＜L≤200 | – | – | – | – | 28 | 32 | 36 | 40 | 44 | 52 | |
| da | max | 3.6 | 4.7 | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 |
| ds | ≈ | 2.6 | 3.5 | 4.4 | 5.3 | 7.1 | 8.9 | 10.7 | 12.5 | 14.5 | 18.2 |
| dw | min | 4.4 | 5.7 | 6.7 | 8.7 | 11.4 | 14.4 | 16.4 | 19.2 | 22 | 27.7 |
| e | min | 5.98 | 7.5 | 8.63 | 10.89 | 14.2 | 17.59 | 19.85 | 22.78 | 26.17 | 32.95 |
| k | Nominal Size | 2 | 2.8 | 3.5 | 4 | 5.3 | 6.4 | 7.5 | 8.8 | 10 | 12.5 |
| min | 1.8 | 2.6 | 3.26 | 3.76 | 5.06 | 6.11 | 7.21 | 8.51 | 9.71 | 12.15 | |
| max | 2.2 | 3 | 3.74 | 4.24 | 5.54 | 6.69 | 7.79 | 9.09 | 10.29 | 12.85 | |
| k1 | min | 1.3 | 1.8 | 2.3 | 2.6 | 3.5 | 4.3 | 5.1 | 6 | 6.8 | 8.5 |
| s | max | 5.5 | 7 | 8 | 10 | 13 | 16 | 18 | 21 | 24 | 30 |
| min | 5.2 | 6.64 | 7.64 | 9.64 | 12.57 | 15.57 | 17.57 | 20.16 | 23.16 | 29.16 | |
| x | max | 1.25 | 1.75 | 2 | 2.5 | 3.2 | 3.8 | 4.3 | 5 | 5 | 6.3 |
Technical Data provided by Fastener Planet