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QC/T 876-2011
Hexagon washer head tapping screws for plastics-type C
Nom
P
dc max
dc min
h min
e min
k max
k min
r max
s max
s min
NST3
1.1
6.3
5.8
0.4
4.28
2.8
2.5
0.1
4
3.86
NST3.5
1.3
8.3
7.6
0.6
5.96
3.4
3
0.1
5.5
5.32
NST4
1.4
8.3
7.6
0.6
5.96
3.4
3
0.2
5.5
5.32
NST5
1.6
10.5
9.8
0.9
8.71
4.3
3.8
0.2
8
7.78
NST5.5
1.8
11
10
1
8.71
5.4
4.8
0.2
8
7.78
NST6
1.8
13.5
12.2
1
10.95
5.9
5.3
0.3
10
9.78
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