Hexagon flange bolts
EN 1665
DIN 6921 (obsolete standard) EN 1665
| standard | |
|---|---|
| head shape | Hexagonal flange |
| Material | |
| Thread | Fully threaded |
| Surface | |
| Grade |
| (mm) | M5 | M6 | M8 | M10 | M12 | M14 | M16 |
|---|---|---|---|---|---|---|---|
| P | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 |
| da(max) | 6.2 | 7.4 | 10 | 12.6 | 15.2 | 17.7 | 20.7 |
| dc(max) | 11.4 | 13.6 | 17 | 20.8 | 24.7 | 28.6 | 32.8 |
| ds(max) | 5 | 6 | 8 | 10 | 12 | 14 | 16 |
| ds(min) | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 |
| e(min) | 7.44 | 8.56 | 10.8 | 14.08 | 16.32 | 19.68 | 22.94 |
| Lf(max) | 1.4 | 2 | 2 | 2 | 3 | 3 | 3 |
| k(max) | 5.6 | 6.8 | 8.5 | 9.7 | 11.9 | 12.9 | 15.1 |
| r(min) | 0.1 | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 |
| s(max) | 7 | 8 | 10 | 13 | 15 | 18 | 21 |
| s(min) | 6.64 | 7.64 | 9.64 | 12.57 | 14.57 | 17.57 | 20.48 |
| c(min) | 1 | 1.1 | 1.25 | 1.5 | 1.8 | 2.1 | 2.4 |
| steel | Stainless steel | ||
| Thread | tolerance | 6g | |
| standard | GB/T 196 - 1981、GB/T 197 - 1981 | ||
| Mechanical properties | Grade | 8.8, 10.9 | A2-70 |
| standard | GB/T 3098.1 - 1982 | GB/T 3098.6 - 1986 | |
| tolerance | Product grade | B | |
| standard | GB/T 3103.1 - 1982 | ||
| surface treatment | ①Oxidation; | without treatment | |
| ②Galvanized passivation GB/T 5267 - 1985 | |||
| surface defects | GB/T 5779.1 - 1986 | ||
| Acceptance and packaging | GB/T 90 - 1985 | ||
