Hexagon Nut Dimensions – Complete Chart in mm


Some repair work can be done by oneself, one of which is changing rusted nuts and bolts. And most of the time, hexagon nuts are used. But it becomes very difficult to identify what size or dimension nuts to be bought. Hence, this article is all about hexagon nut dimensions, what hexagon nuts are, the reason behind the hexagonal shape of the nuts, etc.

Now let’s discuss the hexagon nut dimensions.

Hex nut Dimensions in mm- Complete Chart:

ISO Nut 
Max. thickness
Min. thickness
Across corners
Max. across corners
Min. across corner
m4 hex nut dimensions
3.2
2.9
7.66
7
6.78
m5 hex nut dimensions
4.7
4.4
8.79
8
7.78
m6 hex nut dimensions
5.2
4.9
11.05
10
9.78
m8 hex nut dimensions
6.8
6.44
14.38
13
12.73
m10 hex nut dimensions
8.4
8.04
17.77
16
15.73
m12 hex nut dimensions
10.8
10.37
20.03
18
17.73
m14 hex nut dimensions
12.8
12.1
23.35
21
20.67
m16 hex nut dimensions
14.8
14.1
26.75
24
23.67
m18 hex nut dimensions
15.8
15.1
29.56
27
26.16
m20 hex nut dimensions
18
16.9
32.95
30
29.16
m22 hex nut dimensions
19.4
18.1
37.29
34
33
m24 hex nut dimensions
21.5
20.2
39.55
36
35
m27 hex nut dimensions
23.8
22.5
45.2
41
40
m30 hex nut dimensions
26.6
24.3
50.85
46
45
m42 hex nut dimensions
34
32.4
71.3
65
63.1
m48 hex nut dimensions
39.4
38
82.6
75
73.1

So these were the various dimensions available in hexagon nuts.

What is a Hexagonal Nut?

A six-sided hexagonal nut is a kind of metallic fastener. Because it appears to be the simplest form to grip, the majority of nuts are carved in a hexagonal structure. Nuts are usually solely utilized to secure a bolt to another component in any manner. Hexagon nuts are used in a number of applications. Furniture, domestic appliances, construction structures, children’s toys, vehicles, as well as other items contain them. 

If you’re wondering of many shapes why nuts are mostly of hexagonal form, here’s the reason.

Reasons for the hexagonal shape of nuts:

There are six parallels in the nuts. The hexagonal form was chosen because, with six sides, a fastener may be turned only one-sixth of the way to reach the next parallel. 

A square fastener, for example, must be turned 90 degrees to reach the flat parallel, but hexagonal nuts only need to be rotated 30 degrees to pass the next flat parallel. Because they have six parallels, hexagonal nuts are simpler to spin than other forms of fastening.

Also check the types of screw threads available and their applications.

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