ISO 7051 Flat Countersunk Head Tapping Screws with Cross Recess, Form C
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Standards
ISO 7051
Equivalent Standards
DIN 7983 C
UNI 6956
CSN 21239
Dimensions of Flat Countersunk Head Tapping Screws with Cross Recess
d
k
f
d2
m
Bit PH
2.2
1.1
0.7
3.8
2.8
1
2.9
1.7
0.9
5.5
3.4
1
3.5
2.35
1.2
7.3
4.6
2
3.9
2.3
1.3
7.5
4.7
2
4.2
2.6
1.4
8.4
4.9
2
4.8
2.8
1.5
9.3
5.4
2
5.5
3.0
1.7
10.3
7
3
6.3
3.15
2
11.3
7.4
3