DIN 7981 Specifications

DIN 7981 Specifications

All measurements in millimeters (mm)

d1 k max d2 max m approx. Cross recess No.
2.2 1.8 4.2 2.6 H1
2.9 2.2 5.6 3 H1
3.5 2.6 6.9 4.2 H2
3.9 2.8 7.5 4.4 H2
4.2 3.05 8.2 4.6 H2
4.8 3.55 9.5 5 H2
5.5 3.95 10.8 6.5 H3
6.3 4.55 12.5 7.1 H3
8 5.25 15.8 - -

All information is strictly informative