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ISO 7050-1983
Cross recessed countersunk head tapping screws-type C-type H
Nom
P
a max
dk max
dk min
k max
No.
M
t min
t max
ST2.2
0.8
0.8
3.8
3.5
1.1
0
1.9
0.9
1.2
ST2.9
1.1
1.1
5.5
5.2
1.7
1
3.2
1.7
2.1
ST3.5
1.3
1.3
7.3
6.9
2.35
2
4.4
1.9
2.4
ST4.2
1.4
1.4
8.4
8
2.6
2
4.6
2.1
2.6
ST4.8
1.6
1.6
9.3
8.9
2.8
2
5.2
2.7
3.2
ST5.5
1.8
1.8
10.3
9.9
3
3
6.6
2.8
3.3
ST6.3
1.8
1.8
11.3
10.9
3.15
3
6.8
3
3.5
ST8
2.1
2.1
15.8
15.4
4.65
4
8.9
4
4.6
ST9.5
2.1
2.1
18.3
17.8
5.25
4
10
5.1
5.7
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