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Dimensions Flats & Heights of Hex Nuts DIN & ISO

Heavy Hex Nuts
M Width F
Across Flats
Height of Nuts T
Min-Max
DIN ISO DIN
555
ISO
4034
ISO
type 1
DIN
934
ISO
4032
ISO
8673
ISO
type 1
ISO
4033
ISO
type 2
1 2.5       0.55
-
0.8
   
1.2 3       0.75
-
1.0
   
1.4 3       0.95
-
1.2
   
1.6 3.2       1.05
-
1.3
1.05
-
1.3
 
2 4       1.35
-
1.6
1.35
-
1.6
 
2.5 5       1.75
-
2.0
1.75
-
2.0
 
3 5.5       2.15
-
2.4
2.15
-
2.4
 
3.5 6       2.55
-
2.8
2.55
-
2.8
 
4 7       2.9
-
3.2
2.9
-
3.2
 
5 8   3.4
-
4.6
4.4
-
5.6
3.7
-
4.0
4.4
-
4.7
4.8
-
5.1
6 10   4.4
-
5.6
4.6
-
6.1
4.7
-
5.0
4.9
-
5.2
5.4
-
5.7
7 11       5.2
-
5.5
   
8 13   5.75
-
7.25
6.4
-
7.9
6.14
-
6.5
6.44
-
6.8
7.14
-
7.5
10 17 16 7.25
-
8.75
8.0
-
9.5
7.64
-
8.0
8.04
-
8.4
8.94
-
9.3
12 19 18 9.25
-
10.8
10.4
-
12.2
9.64
-
10.0
10.37
-
10.8
11.75
-
12.0
14 22 21   12.1
-
13.9
10.3
-
11.0
12.1
-
12.8
13.4
-
14.1
16 24   12.1
-
13.9
14.1
-
15.9
12.3
-
13.0
14.1
-
14.8
15.7
-
16.4
18 27     15.1
-
16.9
14.3
-
15.0
15.1
-
15.8
 
20 30   15.1
-
16.9
16.9
-
19.0
14.9
-
16.0
16.9
-
18.0
19.0
-
20.3
22 32 34 17.1
-
18.9
18.1
-
20.2
16.9
-
18.0
18.1
-
19.4
 
24 36   18.0
-
21.0
20.2
-
22.3
17.7
-
19.0
20.2
-
21.5
22.6
-
23.9
27 41   21.0
-
24.0
22.6
-
24.7
20.7
-
22.0
22.5
-
23.8
 
30 46   23.0
-
26.0
24.3
-
26.4
22.7
-
24.0
24.3
-
25.6
27.3
-
28.6
33 50   25.0
-
28.0
27.4
-
29.5
24.7
-
26.0
27.4
-
28.7
 
36 55   28.0
-
31.0
28.0
-
31.5
27.4
-
29.0
29.4
-
31.0
33.1
-
34.7
39 60   30.0
-
32.0
31.8
-
34.3
29.4
-
31.0
31.8
-
33.4
 
42 65   33.0
-
35.0
32.4
-
34.9
32.4
-
34.0
32.4
-
34.0
 
45 70   35.0
-
37.0
34.4
-
36.9
34.4
-
36.0
34.4
-
36.0
 
48 75   36.0
-
39.0
36.4
-
38.9
36.4
-
38.0
36.4
-
38.0
 
52 80   41.0
-
43.0
40.4
-
42.9
40.4
-
42.0
40.4
-
42.0
 
56 85   44.0
-
46.0
43.4
-
45.9
43.4
-
45.0
43.4
-
45.0
 
60 90   47.0
-
49.0
46.4
-
48.9
46.4
-
48.0
46.4
-
48.0
 
64 95   49.5
-
52.5
49.4
-
52.4
49.1
-
51.0
49.1
-
51.0
 

Note: All dimensions are given in millimeters.

Heavy Hex Nuts

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