Metric Nut Chart

Diameters & thickness expressed in millimeters  ​​

Metric Full Nuts 

 ​​Size 
 
M1.2
M1.4
M1.6
M1.7
M2
M2.3
M2.5
M2.6
M3
M3.5
M4
M5
M6
M7
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
M30
M33
M36
M39
M42
M45
M48
M52
M56
M60
M64
M68
M72
M76
M80
M85
M90
M95
M100
M110
M115
M120
M125
M130
M135
M140
M145
M150
 Across Flats 

 3
3
3.2
3.5
4
4.5
5
5
5.5
6
7
8
10
11
13
17
19
22
24
27
30
32
36
41
46
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
130
135
145
155
165
170
180
185
190
200
210
210
 Across Points 
 
3.29
3.29
3.48
3.82
4.32
4.95
5.45
5.51
6.01
6.01
7.66
8.76
11.05
12.12
14.38
18.9
21.1
24.49
26.75
29.56
32.95
35.03
39.55
45.2
50.85
55.37
60.79
66.44
71.3
76.95
82.6
88.25
95.07
100.72
106.37
112.02
117.67
123.32
128.97
133.11
145.77
151.42
162.72
174.02
185.32
190.97
202.27
207.75
213.4
224.7
236
236
 Thickness
 
1
1.2
1.3
1.4
1.6
1.8
2
2
2.4
2.8
3.2
4
5
5.5
6.5
8
10
11
13
15
16
18
19
22
24
26
29
31
34
36
38
42
45
48
51
54
58
61
64
68
72
76
80
88
92
96
100
104
108
112
116
120

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