Cross recessed contersunk head self-tapping screw (GOST DIN ISO 7050-90)
Internet address: http://www.rmz.by/products/wood_screws/221/
Table of the sizes
thread
ST2,9
ST3,5
ST3,9
ST4,2
d
2,9
3,5
3,9
4,2
D
5,5
6,8
7,5
8,1
k
1,70
2,10
2,30
2,50
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