DIN 7991 Flat Countersunk Head Socket Cap Screws
DIN 7991 Flat Countersunk Head Socket Cap Screws, CSK head, made of steel, class 8.8/ 12.9, black oxide or zinc plated, size M6-M12 from China Socket Cap Screws manufacturer.
DIN 7991 Flat Countersunk Head Socket Cap Screws
Material: Steel ;
Class: 8.8 / 12.9
Finish: Black oxide, Zinc plated
Size: M6 – M12
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DIN 7991 Flat Countersunk Head Socket Cap Screws specification:
| Size (d) | M6 | M8 | M10 | M12 | M16 | M20 |
| Pitch | 1.0 | 1.25 | 1.5 | 1.75 | 2.0 | 2.5 |
| Thread Length (b) | 18 | 22 | 26 | 30 | 38 | 46 |
| dk max | 12 | 16 | 20 | 24 | 30 | 36 |
| K max | 3.3 | 4.4 | 5.5 | 6.5 | 7.5 | 8.5 |
| α | 90° | 90° | 90° | 90° | 90° | 90° |
| s | 4 | 5 | 6 | 8 | 10 | 12 |
| L | Weight In Kg/1000 Pcs | |||||
| 10 | 2.7 | 5.47 | ||||
| 12 | 3.05 | 6.1 | 10.1 | |||
| 16 | 3.76 | 7.35 | 12.1 | |||
| 20 | 4.46 | 7.6 | 14.1 | 21.2 | ||
| 25 | 5.34 | 10.2 | 16.6 | 24.8 | ||
| 30 | 6.22 | 11.7 | 19.1 | 28.5 | 51.8 | |
| 35 | 7.1 | 13.3 | 21.6 | 32.1 | 58.4 | 91.4 |
| 40 | 8.83 | 14.8 | 24.1 | 35.7 | 65.1 | 102 |
| 50 | 11 | 19.9 | 30.1 | 43 | 78.4 | 123 |
| 60 | 24.8 | 35.7 | 54 | 91.7 | 143 | |
| 70 | 41.2 | 62.9 | 111 | 164 | ||
| 80 | 127 | 200 | ||||
| 90 | 143 | 226 | ||||
| 100 | 253 | |||||