Hexagonal Flange Bolts
DIN6921
Diameter range: M4-M16 Length range: 8mm-130mm
| standard | DIN German standard |
|---|---|
| head shape | Hexagonal flange |
| Thread | Fully threaded |
| (mm) | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 |
|---|---|---|---|---|---|---|---|---|
| P | 0.8 | 1 | 1|1.25 | 1|1.25|1.5 | 1.25|1.5|1.75 | 1.5|2 | 1.5|2 | 1.5|2.5 |
| da(max) | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 |
| dc(max) | 11.8 | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 |
| ds(max) | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| ds(min) | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 |
| e(min) | 8.71 | 10.95 | 14.26 | 16.5 | 17.62 | 19.86 | 23.15 | 29.87 |
| Lf(max) | 1.4 | 2 | 2 | 2 | 3 | 3 | 3 | 4 |
| k max) | 5.4 | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | 14.4 | 17.1 |
| r(min) | 0.25 | 0.4 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 |
| s(max) | 8 | 10 | 13 | 15 | 16 | 18 | 21 | 27 |
| s(min) | 7.78 | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 |
| steel | Stainless steel | ||
| General technical conditions | DIN 267-1 | ||
| Thread | tolerance | 6g | |
| standard | DIN 13-12、DIN 13-15 | ||
| Mechanical properties | Grade | 8.8, 10.9, 12.9 | A2-70 |
| standard | DIN ISO 898-1 | DIN 267-11 | |
| tolerance | Product grade | A | |
| standard | DIN ISO 4759-1 | ||
| surface treatment | Blackening (heat or chemical) | without treatment | |
| Electroplating technology requirements are in accordance with DIN 267-9; | |||
| Hot dip galvanizing technical requirements according to DIN 267-10 | |||
| surface roughness | DIN 267-2 | ||
| surface defects | DIN 267-19 | ||
| Acceptance and packaging | DIN 267-5、DIN 962 | ||
