DIN 7991 Flat Countersunk Head Socket Cap Screw
DIN 7991 Flat Countersunk Head Socket Cap Screw made of Steel, class 8.8 or 12.9 , M3 – M24 from professional Socket Cap Screws manufacturer in China.
DIN 7991 Flat Countersunk Head Socket Cap Screw
Standard: DIN 7991, ISO 10642, ISO 14581
Grade: Class8.8, Class12.9
Size: M3 – M24
Material: Steel; Surface: Black oxide or Zinc plated
 |
 |
DIN 7991 Flat Countersunk Head Socket Cap Screw specification:
| Size | P | dk max | dk min | k max | s min | s max | t max | t min |
| M3 | 0.5 | 6 | 5.7 | 1.7 | 2.02 | 2.1 | 1.2 | 0.95 |
| M4 | 0.7 | 8 | 7.64 | 2.3 | 2.52 | 2.6 | 1.8 | 1.55 |
| M5 | 0.8 | 10 | 9.64 | 2.8 | 3.02 | 3.1 | 2.3 | 2.05 |
| M6 | 1.0 | 12 | 11.57 | 3.3 | 4.02 | 4.12 | 2.5 | 2.25 |
| M8 | 1.25 | 16 | 15.57 | 4.4 | 5.02 | 5.14 | 3.5 | 3.2 |
| M10 | 1.5 | 20 | 19.48 | 5.5 | 6.02 | 6.14 | 4.4 | 4.1 |
| M12 | 1.75 | 24 | 23.48 | 6.5 | 8.025 | 8.175 | 4.6 | 4.3 |
| M14 | 2.0 | 27 | 26.48 | 7.0 | 10.025 | 10.175 | 4.8 | 4.5 |
| M16 | 2.0 | 30 | 29.48 | 7.5 | 10.025 | 10.175 | 5.3 | 5.0 |
| M18 | 2.5 | 33 | 32.38 | 8.0 | 12.032 | 12.212 | 5.5 | 5.2 |
| M20 | 2.5 | 36 | 35.38 | 8.5 | 12.032 | 12.212 | 5.9 | 5.6 |
| M22 | 2.5 | 36 | 35.38 | 13.1 | 14.032 | 14.212 | 8.8 | 8.44 |
| M24 | 3.0 | 39 | 38.38 | 14 | 14.032 | 14.212 | 10.3 | 9.87 |
