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BS EN ISO 4032 Hexagon nuts style 1 – product grades A and B

Engineering ANSI Hardware Design Data
Engineering Metric Hardware Design Data

BS EN ISO 4032 Hexagon nuts style 1 – product grades A and B

Example for the designation of a hexagon nut, style 1, with thread size d  M12 and property class 8:
Hexagon nut ISO 4032 – M12 – 8

All dimensions are in millimeters.

BS EN ISO 4032: 2001 Hexagon nuts style 1 – product grades A and B

BS EN ISO 4032: 2001 Table 1 Preferred sizes Dimensions in mm

Thread size, d
M1.6
M2
M2.5
M3
M4
M5
M6
M8
M10
M12
Pa
0.35
0.4
0.45
0.5
0.7
0.8
1
1.25
1.5
1.75
c
max.
0.2
0.2
0.3
0.4
0.4
0.5
0.5
0.6
 
0.6
min.
0.1
0.1
0.1
0.15
0.15
0.15
0.15
0.15
0.15
0.15
da
min.
1.6
2
2.5
3
4
5
6
8.
10
12
max.
1.84
2.3
2.9
3.45
4.6
5.75
6.75
8.75
10.8
13
dw
min.
2.4
3.1
4.1
4.6
5.9
6.9
8.9
11.6
14.6
16.6
e
min.
3.41
4.32
5.45
6.01
7.66
8.79
11.05
14.38
17.77
20.03
m
max.
1.3
1.6
2
2.4
3.2
4.7
5.2
6.8
8.4
10.8
min.
1.05
1.35
1.75
2.15
2.9
4.4
4.9
6.44
8.04
10.37
m'
min.
0.8
1.1
1.4
1.7
2.3
3.5
3.9
5.2
6.4
8.3
m''
min.
0.7
1
1.2
1.5
2
3.1
3.4
4.5
5.6
7.3
s
nom. = max.
3.2
4
5
5.5
7
8
10
13
16
18
min.
3.02
3.82
4.82
5.32
6.78
7.78
9.78
12.73
15.73
17.73
Thread size, d
M16
M20
M24
M30
M36
M42
M48
M56
M64
-
Pa
2
2.5
3
3.5
4
4.5
5
5.5
6
-
c
max.
0.8
0.8
0.8
0.8
0.8
1
1
1
1
-
min.
0.2
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3
-
da
min.
16
20
24
30
36
42
48
56
64
-
max.
17.3
21.6
26.9
32.4
38.9
45.4
51.8
60.5
69.1
-
dw
min.
22.5
27.7
33.3
42.8
51.1
60
69.5
78.7
88.2
-
e
min.
26.75
32.95
39.55
50.85
60.79
71.3
82.6
93.56
104.86
-
m
max.
14.8
18
21.5
25.6
31
34
38
45
51
-
min.
14.1
16.9
20.2
24.3
29.4
32.4
36.4
43.4
49.1
-
m'
min.
11.3
13.5
16.2
19.4
23.5
25.9
29.1
34.7
39.3
-
m''
min.
9.9
11.8
4.1
17
20.6
22.7
25.5
30.4
34.4
-
s
min. = max.
24
30
36
46
55
65
75
85
95
-
min.
23.67
29.16
35
45
53.8
63.1
73.1
82.8
92.8
-

BS EN ISO 4032: 2001 Table 2 Non-preferred sizes

Thread size, d
M3.5
M14
M18
M22
M27
M33
M39
M45
M52
M60
Pa
0.6
2
2.5
2.5
3
3.5
4
4.5
5
5.5
c
max.
0.4
0.6
0.8
0.8
0.8
0.8
1
1
1
1
min.
0.15
0.15
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3
da
min.
3.5
14
18
22
27
33
39
45
52
60
max.
4
15.1
19.5
23.7
29.1
35.6
42.1
48.6
56.2
64.8
dw
min.
5
19.6
24.9
31.4
38
46.6
55.9
64.7
74.2
83.4
e
min.
6.58
23.35
29.56
37.29
45.2
55.37
66.44
76.95
88.25
99.21
m
max.
2.8
12.8
15.8
19.4
23.8
28.7
33.4
36
42
48
min.
2.55
12.1
15.1
18.1
22.5
27.4
31.8
34.4
40.4
46.4
m'
min.
2
9.7
12.1
14.5
18
21.9
22.3
24.1
28.3
32.5
m''
min.
1.8
8.5
10.6
12.7
15.8
19.2
22.3
24.1
28.3
32.5
s
min. = max.
6
21
27
34
41
50
60
70
80
90
min.
5.82
20.67
26.16
33
40
49
58.8
68.1
78.14
87.7

aP = pitch of the thread.

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