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Standard
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DIN6916 Standard


Nominal
size
For thread size
Hole diameter d1
Outside diameter d2
Outside diameter. d2
C
E
Mass ()7.8kg/dm3)
min=nominal size
max
max=nominal size
min
Nominal size
max
min
min=nominal size
max
13
M12
13
13.27
24
23.48
3
3.3
2.7
1.6
1.9
0.5
7.03
17
M16
17
17.27
30
29.48
4
4.3
3.7
1.6
1.9
1
14.6
21
M20
21
21.33
37
36.38
4
4.3
3.7
2
2.5
1
19.8
23
M22
23
23.33
39
38.38
4
4.3
3.7
2
2.5
1
24.3
25
M24
25
25.33
44
43.38
4
4.3
3.7
2
2.5
1
30.6
28
M27
28
28.52
50
49
5
5.6
4.4
2.5
3
1
50.2
31
M30
31
31.62
56
54.8
5
5.6
4.4
2.5
3
1
63.2
37
M36
37
37.62
66
64.8
6
6.6
5.4
3
3.5
1.5
115
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