Nominal Size
|
For Thread Size M |
Clearance hole diameter , d1
|
Outside diameter d2
|
Thickness, h
|
||||
Min. =nominal size
|
max
|
Max=nominal size
|
min
|
Nominal size
|
max
|
min
|
||
1.7
|
1.6
|
1.7
|
1.84
|
4
|
3.7
|
0.3
|
0.35
|
0.25
|
1.8
|
1.7
|
1.8
|
1.94
|
4.5
|
4.2
|
0.3
|
0.35
|
0.25
|
2.2
|
2
|
2.2
|
2.34
|
5
|
4.7
|
0.3
|
0.35
|
0.25
|
2.5
|
2.3
|
2.5
|
2.64
|
6
|
5.7
|
0.3
|
0.55
|
0.45
|
2.7
|
2.5
|
2.7
|
2.84
|
6
|
5.7
|
0.5
|
0.55
|
0.45
|
2.8
|
2.6
|
2.8
|
2.94
|
7
|
6.64
|
0.5
|
0.55
|
0.45
|
3.2
|
3
|
3.2
|
3.38
|
7
|
6.64
|
0.5
|
0.55
|
0.45
|
3.7
|
3.5
|
3.7
|
3.88
|
8
|
7.64
|
0.5
|
0.55
|
0.45
|
4.3
|
4
|
4.3
|
4.48
|
9
|
8.64
|
0.8
|
0.9
|
0.7
|
5.3
|
5
|
5.3
|
5.48
|
10
|
9.64
|
1
|
1.1
|
0.9
|
6.4
|
6
|
6.4
|
6.62
|
12
|
11.57
|
1.6
|
1.8
|
1.4
|
7.4
|
7
|
7.4
|
7.62
|
14
|
13.57
|
1.6
|
1.8
|
1.4
|
8.4
|
8
|
8.4
|
8.62
|
16
|
15.57
|
1.6
|
1.8
|
1.4
|
10.5
|
10
|
10.5
|
10.77
|
20
|
19.48
|
2
|
2.2
|
1.8
|
13
|
12
|
13
|
13.27
|
24
|
23.48
|
2.5
|
2.7
|
2.3
|
15
|
14
|
15
|
15.27
|
28
|
27.48
|
2.5
|
2.7
|
2.3
|
17
|
16
|
17
|
17.27
|
30
|
29.48
|
3
|
3.3
|
2.7
|
19
|
18
|
19
|
19.33
|
34
|
33.38
|
3
|
3.3
|
2.7
|
21
|
20
|
21
|
21.33
|
37
|
36.38
|
3
|
3.3
|
2.7
|
23
|
22
|
23
|
23.33
|
39
|
38.38
|
3
|
3.3
|
2.7
|
25
|
24
|
25
|
25.33
|
44
|
43.38
|
4
|
4.3
|
3.7
|
27
|
26
|
27
|
27.33
|
50
|
49.38
|
4
|
4.3
|
3.7
|
28
|
27
|
28
|
28.33
|
50
|
49.38
|
4
|
4.3
|
3.7
|
29
|
28
|
29
|
29.33
|
50
|
49.38
|
4
|
4.3
|
3.7
|
31
|
30
|
31
|
31.39
|
56
|
55.26
|
4
|
4.3
|
3.7
|
33
|
32
|
33
|
33.62
|
60
|
58.8
|
5
|
5.6
|
4.4
|
34
|
33
|
34
|
34.62
|
60
|
58.8
|
5
|
5.6
|
4.4
|
36
|
35
|
36
|
36.62
|
66
|
64.8
|
5
|
5.6
|
4.4
|
37
|
36
|
37
|
37.62
|
66
|
64.8
|
5
|
5.6
|
4.4
|