中山DIN 7981 十字槽盘头自攻钉 标准查询

DIN 7981
Form C, with drilling tip

*All measurements in millimeters (mm)*

d k max d1 max r1 approx Cross recess No.
2.2 1.8 4.2 3.4 H1
2.9 2.2 5.6 4.4 H1
3.5 2.6 6.9 5.4 H2
3.9 2.8 7.5 5.8 H2
4.2 3.05 8.2 6.2 H2
4.8 3.55 9.5 7.2 H2
5.5 3.95 10.8 8.2 H3
6.3 4.55 12.5 9.5 H3
8 5.25 15.8 - -

All information is strictly informative