DIN7997
Cross Recessed Countersunk Head Wood Screws ʮֳͷľݶ
 
            ̼        ̼
Ʊ            п       п
 
Thread
2.5
3
3.5
4
4.5
5
6
d2
4.7
5.6
6.5
7.5
8.3
9.2
11
k max
1.5
1.65
1.93
2.2
2.35
2.5
3
m
2.8
3
4
4.2
4.4
5
6.3
L
10-80
[رմ] [ӡҳ]