DIN EN ISO 4017 – 2001 Hexagon head screws — Product grades A and B
DIN EN ISO 4017-2001 is a hes head bolt standard for dimensions, more details to check below information. Half thread hex bolt standard is DIN EN ISO 4014. Bolts’ properties need to follow ISO 898-1. Anyang Longteng Heat Treatment Material Co.,Ltd produce ISO 4017, ISO 4014 with property class 8.8, 10.9, or customers’s target properties, product size range M20-M80. CE certificate available, EN14399, EN15048, EN1090.
| Screw Thread | M20 | (M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | ||
| d | ||||||||||
| P | Pitch | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | |
| a | max | 7.5 | 7.5 | 9 | 9 | 10.5 | 10.5 | 12 | 12 | |
| min | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | ||
| c | max | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1 | |
| min | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | ||
| da | max | 22.4 | 24.4 | 26.4 | 30.4 | 33.4 | 36.4 | 39.4 | 42.4 | |
| dw | Grade A | min | 28.19 | 31.71 | 33.61 | - | - | - | - | - |
| Grade B | min | 27.7 | 31.35 | 33.25 | 38 | 42.75 | 46.55 | 51.11 | 55.86 | |
| e | Grade A | min | 33.53 | 37.72 | 39.98 | - | - | - | - | - |
| Grade B | min | 32.95 | 37.29 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | |
| k | Nominal Size | 12.5 | 14 | 15 | 17 | 18.7 | 21 | 22.5 | 25 | |
| Grade A | max | 12.715 | 14.215 | 15.215 | - | - | - | - | - | |
| min | 12.285 | 13.785 | 14.785 | - | - | - | - | - | ||
| Grade B | max | 12.85 | 14.35 | 15.35 | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | |
| min | 12.15 | 13.65 | 14.65 | 16.65 | 18.28 | 20.58 | 22.08 | 24.58 | ||
| k1 | Grade A | min | 8.6 | 9.65 | 10.35 | - | - | - | - | - |
| Grade B | min | 8.51 | 9.56 | 10.26 | 11.66 | 12.8 | 14.41 | 15.46 | 17.21 | |
| r | min | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | |
| s | max=nominal size | 30 | 34 | 36 | 41 | 46 | 50 | 55 | 60 | |
| Grade A | min | 29.67 | 33.38 | 35.38 | - | - | - | - | - | |
| Grade B | min | 29.16 | 33 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | |
| Screw Thread | M42 | (M45) | M48 | (M52) | M56 | (M60) | M64 | ||
| d | |||||||||
| P | Pitch | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 | |
| a | max | 13.5 | 13.5 | 15 | 15 | 16.5 | 16.5 | 18 | |
| min | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 | ||
| c | max | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| min | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | ||
| da | max | 45.6 | 48.6 | 52.6 | 56.6 | 63 | 67 | 71 | |
| dw | Grade A | min | - | - | - | - | - | - | - |
| Grade B | min | 59.95 | 64.7 | 69.45 | 74.2 | 78.66 | 83.41 | 88.16 | |
| e | Grade A | min | - | - | - | - | - | - | - |
| Grade B | min | 71.3 | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 | |
| k | Nominal Size | 26 | 28 | 30 | 33 | 35 | 38 | 40 | |
| Grade A | max | - | - | - | - | - | - | - | |
| min | - | - | - | - | - | - | - | ||
| Grade B | max | 26.42 | 28.42 | 30.42 | 33.5 | 35.5 | 38.5 | 40.5 | |
| min | 25.58 | 27.58 | 29.58 | 32.5 | 34.5 | 37.5 | 39.5 | ||
| k1 | Grade A | min | - | - | - | - | - | - | - |
| Grade B | min | 17.91 | 19.31 | 20.71 | 22.75 | 24.15 | 26.25 | 27.65 | |
| r | min | 1.2 | 1.2 | 1.6 | 1.6 | 2 | 2 | 2 | |
| s | max=nominal size | 65 | 70 | 75 | 80 | 85 | 90 | 95 | |
| Grade A | min | - | - | - | - | - | - | - | |
| Grade B | min | 63.1 | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 | |
