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DIN440 Standard


Nominal
size
For thread size
Hole diameter d1
Outside diameter d2
Outside diameter. D2
Approximate mass(7.85kg/dm3).
per 1000 units,inkg
min=nominal size max max=nominal size min Nominal size max min
5.5
M5
5.5
5.8
18
16.9
2
2.3
1.7
3.62
6.6
M6
6.6
6.96
22
20.7
2
2.3
1.7
5.43
11
M8
9
9.36
28
2637
3
3.6
2.4
13.0
13.5
M10
11
11.43
34
32.4
3
3.6
2.4
19.1
15.5
M12
13.5
13.93
44
42.4
4
4.6
3.4
43.3
17.5
M14
15.5
15.93
50
48.4
4
4.6
3.4
55.7
22
M16
17.5
18.2
58
54.1
5
6
4
87.2
24
M20
22
22.84
72
70.1
6
7
5
174
26
M24
26
26.84
85
82.8
6
7
5
242
30
M27
30
30.84
98
95.8
6
7
5
322
33
M30
33
34
105
102.8
6
7
5
368
36
M33
36
37
112
109.8
6
7
5
416
39
M36
39
40
125
122.5
8
9.2
6.8
695
42
M39
42
43
140
137.5
8
9.2
6.8
881
45
M42
45
46
150
147.5
8
9.2
6.8
1010
48
M45
48
49
160
157.5
8
9.2
6.8
1150
52
M48
52
53.2
170
167.5
10
11.2
8.8
1620
56
M52
56
57.2
180
177.5
10
11.2
8.8
1800