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ASME/ANSI B18.2.5M-2017
Metric type U 12-Piont flange screws
Nom
P
ds max
ds min
s max
s min
e min
dc max
dc min
h max
h min
k max
k min
da max
Lf max
r max
r min
M5
0.8
5
4.82
5
4.79
5.6
8.72
8.27
2.25
2
5
4.88
6.2
1.4
0.25
0.1
M6
1
6
5.82
6
5.79
6.7
10.22
9.77
2.7
2.45
6
5.82
7.5
1.6
0.26
0.11
M8
1.25
8
7.78
8
7.78
9
13.27
12.72
3.6
3.35
8
7.78
10
2.1
0.36
0.16
M10
1.5
10
9.78
10
9.78
11.2
16.27
15.69
4.5
4.13
10
9.78
12.5
2.1
0.45
0.2
M12
1.75
12
11.73
12
11.79
13.5
18.27
17.67
5.4
5.03
12
11.73
15.2
2.1
0.54
0.24
M14
2
14
13.73
14
13.79
15.8
21.33
20.67
6.3
5.93
14
13.73
17.7
2.1
0.63
0.28
M16
2
16
15.73
16
15.81
18
24.33
23.62
7.2
6.83
16
15.73
20.5
3.2
0.72
0.32
M20
2.5
20
19.67
20
19.82
22.5
30.33
29.55
9
8.5
20
19.67
25.5
3.2
0.89
0.4
M24
3
24
23.67
24
23.75
27
36.39
35.52
10.8
10.3
24
23.67
30.7
3.2
1.07
0.48
M30
3.5
30
29.67
30
29.72
33.8
45.39
44.52
13.5
13
30
29.67
38.5
4.5
1.33
0.61
M36
4
36
35.61
36
35.7
40.5
54.46
52.75
16.2
15.6
36
35.57
46.2
4.5
1.6
0.73
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