Inch to Metric Conversion Chart (Bolt Size)
| Bolt Size (IN) | A Measure (IN) | Equal | Bolt Size (MM) | Bolt Size (MM) |
| 3/8" Bolt | Slot 1/2" | = | M10 Bolt | 12mm Slot |
| 7/16" Bolt | Slot 9/16" | = | M12 Bolt | 14mm Slot |
| 1/2" Bolt | Slot 5/8" | = | M14 Bolt | 16mm Slot |
| 5/8" Bolt | Slot 11/16" | = | M16 Bolt | 18mm Slot |
| 3/4" Bolt | Slot 7/8" | = | M18 Bolt | 20mm Slot |
| 13/16" Bolt | Slot 15/16" | = | M20 Bolt | 22mm Slot |
| 7/8" Bolt | Slot 1" | = | M22 Bolt | 24mm Slot |
| 1" Bolt | Slot 1 1/8" | = | M24 Bolt | 26mm Slot |
Metric to Inch Conversion Chart
|
MM |
IN |
MM |
IN |
MM |
IN |
MM |
IN |
MM |
IN |
MM |
IN |
|
1 |
0.04 |
35 |
1.38 |
69 |
2.72 |
103 |
4.06 |
137 |
5.40 |
171 |
6.74 |
|
2 |
0.08 |
36 |
1.42 |
70 |
2.76 |
104 |
4.10 |
138 |
5.44 |
172 |
6.78 |
|
3 |
0.12 |
37 |
1.46 |
71 |
2.80 |
105 |
4.14 |
139 |
5.48 |
173 |
6.82 |
|
4 |
0.16 |
38 |
1.50 |
72 |
2.84 |
106 |
4.18 |
140 |
5.52 |
174 |
6.86 |
|
5 |
0.20 |
39 |
1.54 |
73 |
2.88 |
107 |
4.22 |
141 |
5.56 |
175 |
6.90 |
|
6 |
0.24 |
40 |
1.58 |
74 |
2.92 |
108 |
4.26 |
142 |
5.59 |
176 |
6.93 |
|
7 |
0.28 |
41 |
1.62 |
75 |
2.96 |
109 |
4.29 |
143 |
5.63 |
177 |
6.97 |
|
8 |
0.32 |
42 |
1.65 |
76 |
2.99 |
110 |
4.33 |
144 |
5.67 |
178 |
7.01 |
|
9 |
0.35 |
43 |
1.69 |
77 |
3.03 |
111 |
4.37 |
145 |
5.71 |
179 |
7.05 |
|
10 |
0.39 |
44 |
1.73 |
78 |
3.07 |
112 |
4.41 |
146 |
5.75 |
180 |
7.09 |
|
11 |
0.43 |
45 |
1.77 |
79 |
3.11 |
113 |
4.45 |
147 |
5.79 |
181 |
7.13 |
|
12 |
0.47 |
46 |
1.81 |
80 |
3.15 |
114 |
4.49 |
148 |
5.83 |
182 |
7.17 |
|
13 |
0.51 |
47 |
1.85 |
81 |
3.19 |
115 |
4.53 |
149 |
5.87 |
183 |
7.21 |
|
14 |
0.55 |
48 |
1.89 |
82 |
3.23 |
116 |
4.57 |
150 |
5.91 |
184 |
7.25 |
|
15 |
0.59 |
49 |
1.93 |
83 |
3.27 |
117 |
4.61 |
151 |
5.95 |
185 |
7.29 |
|
16 |
0.63 |
50 |
1.97 |
84 |
3.31 |
118 |
4.65 |
152 |
5.99 |
186 |
7.33 |
|
17 |
0.67 |
51 |
2.01 |
85 |
3.35 |
119 |
4.69 |
153 |
6.03 |
187 |
7.37 |
|
18 |
0.71 |
52 |
2.05 |
86 |
3.39 |
120 |
4.73 |
154 |
6.07 |
188 |
7.41 |
|
19 |
0.75 |
53 |
2.09 |
87 |
3.43 |
121 |
4.77 |
155 |
6.11 |
189 |
7.45 |
|
20 |
0.79 |
54 |
2.13 |
88 |
3.47 |
122 |
4.81 |
156 |
6.15 |
190 |
7.49 |
|
21 |
0.83 |
55 |
2.17 |
89 |
3.51 |
123 |
4.85 |
157 |
6.19 |
191 |
7.53 |
|
22 |
0.87 |
56 |
2.21 |
90 |
3.55 |
124 |
4.89 |
158 |
6.23 |
192 |
7.56 |
|
23 |
0.91 |
57 |
2.25 |
91 |
3.59 |
125 |
4.93 |
159 |
6.26 |
193 |
7.60 |
|
24 |
0.95 |
58 |
2.29 |
92 |
3.62 |
126 |
4.96 |
160 |
6.30 |
194 |
7.64 |
|
25 |
0.99 |
59 |
2.32 |
93 |
3.66 |
127 |
5.00 |
161 |
6.34 |
195 |
7.68 |
|
26 |
1.02 |
60 |
2.36 |
94 |
3.70 |
128 |
5.04 |
162 |
6.38 |
196 |
7.72 |
|
27 |
1.06 |
61 |
2.40 |
95 |
3.74 |
129 |
5.08 |
163 |
6.42 |
197 |
7.76 |
|
28 |
1.10 |
62 |
2.44 |
96 |
3.78 |
130 |
5.12 |
164 |
6.46 |
198 |
7.80 |
|
29 |
1.14 |
63 |
2.48 |
97 |
3.82 |
131 |
5.16 |
165 |
6.50 |
199 |
7.84 |
|
30 |
1.18 |
64 |
2.52 |
98 |
3.86 |
132 |
5.20 |
166 |
6.54 |
200 |
7.88 |
|
31 |
1.22 |
65 |
2.56 |
99 |
3.90 |
133 |
5.24 |
167 |
6.58 |
MM=millimeters |
|
|
32 |
1.26 |
66 |
2.60 |
100 |
3.94 |
134 |
5.28 |
168 |
6.62 |
||
|
33 |
1.30 |
67 |
2.64 |
101 |
3.98 |
135 |
5.32 |
169 |
6.66 |
IN=inches |
|
|
34 |
1.34 |
68 |
2.68 |
102 |
4.02 |
136 |
5.36 |
170 |
6.70 |
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