Metric Bolt Head/Wrench Size
Bolt Diameter
(mm) |
Head/Wrench Size
(mm) |
| ANSI/ISO |
DIN |
JIS |
DIN/ISO
Heavy Hex |
| 4 |
7 |
7 |
7 |
- |
| 5 |
8 |
8 |
8 |
- |
| 6 |
10 |
10 |
10 |
- |
| 7 |
- |
11 |
- |
- |
| 8 |
13 |
13 |
12 |
- |
| 10 |
16 |
17 |
14 |
- |
| 12 |
18 |
19 |
17 |
22/21* |
| 14 |
21 |
22 |
19 |
- |
| 16 |
24 |
24 |
22 |
27 |
| 18 |
- |
27 |
- |
- |
| 20 |
30 |
30 |
- |
34/32* |
|
ANSI - American National Standards Institute
ISO - International Organization for Standardisation
DIN - Deutsches Institut für Normung
JIS - Japanese Industrial Standard
* Indicates ISO standard.
|