Hexagon head bolt flat spring washer combination
GB9074.17
Diameter range: M3-M12 Length range: 6mm-300mm
| standard | GB national standard |
|---|---|
| head shape | Hexagon (single chamfer) |
| Thread | Fully threaded |
| (mm) | M3 | M4 | M5 | M6 | M8 | M10 | M12 |
|---|---|---|---|---|---|---|---|
| P | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 |
| e(min) | 6.07 | 7.66 | 8.79 | 11.05 | 14.38 | 17.77 | 20.03 |
| k(min) | 1.88 | 2.68 | 3.35 | 3.85 | 5.15 | 6.22 | 7.32 |
| k(max) | 2.12 | 2.92 | 3.65 | 4.15 | 5.45 | 6.58 | 7.68 |
| s(max) | 5.5 | 7 | 8 | 10 | 13 | 16 | 18 |
| s(min) | 5.32 | 6.78 | 7.78 | 9.78 | 12.73 | 15.73 | 17.73 |
| d1(max) | 2.83 | 3.78 | 4.75 | 5.71 | 7.64 | 9.59 | 11.53 |
| d1(min) | 2.69 | 3.6 | 4.45 | 5.41 | 7.28 | 9.23 | 11.1 |
| h(min) | 0.7 | 1 | 1.2 | 1.5 | 1.9 | 2.35 | 2.85 |
| h(max) | 0.9 | 1.2 | 1.4 | 1.7 | 2.1 | 2.65 | 3.15 |
| b1(min) | 1.1 | 1.4 | 1.9 | 2.35 | 2.85 | 3.3 | 3.8 |
| b1(max) | 1.3 | 1.6 | 2.1 | 2.65 | 3.15 | 3.7 | 4.2 |
| H | 2 | 2.75 | 3.25 | 4 | 5 | 6.25 | 7.5 |
| d2(max) | 2.83 | 3.78 | 4.75 | 5.71 | 7.64 | 9.59 | 11.53 |
| d2(min) | 2.73 | 3.66 | 4.57 | 5.53 | 7.42 | 9.37 | 11.26 |
| dc | 7 | 9 | 10 | 12 | 16 | 20 | 24 |
| h1 | 0.5 | 0.8 | 1 | 1.6 | 1.6 | 2 | 2.5 |
| project | bolt | washer | washer |
| Standard number | GB/T 5783 | GB/T 9074.26 | GB/T 9074.24 |
| surface treatment | ①Galvanized passivation GB/T 5267; | ①Galvanized passivation GB/T 5267; | ①Galvanized passivation GB/T 5267; |
| ②Oxidation | ②Oxidation | ②Oxidation | |
| Other technical requirements | The gasket should be able to rotate freely without falling off | The gasket should be able to rotate freely without falling off | The gasket should be able to rotate freely without falling off |
| Acceptance and packaging | GB/T 90 | GB/T 90 | GB/T 90 |
