|
|
Wrench Sizes
|
Metric Measurements |
|
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 fur Normung |
| JIS - Japanese Industrial Standard |
| * Indicates ISO standard. |
|
US Standard Measurements |
|
Bolt Diameter |
Head and Wrench Size |
|
Hex Bolt
-
Lag Bolt
-
Square Bolt |
Heavy Hex Bolt |
|
#6 |
1/4 |
- |
|
#8 |
1/4 |
- |
|
#10 |
5/16 |
- |
|
#12 |
5/16 |
- |
|
1/4 |
7/16 or 3/8 |
- |
|
5/16 |
1/2 |
- |
|
3/8 |
9/16 |
- |
|
7/16 |
5/8 |
- |
|
1/2 |
3/4 |
7/8 |
|
9/16 |
13/16 |
- |
|
5/8 |
15/16 |
1-1/16 |
|
3/4 |
1-1/8 |
1-1/4 |
|
7/8 |
1-5/16 |
1-7/16 |
|
1 |
1-1/2 |
1-5/8 |
|
1-1/8 |
1-11/16 |
1-3/4 |
|
1-1/4 |
1-7/8 |
2 |
This technical information is supplied as a courtesy. All-Pro Fasteners, Inc. neither employs nor maintains an engineering or technical staff, and All-Pro is merely supplying certain manufacturing, technical, and/or design specifications and data received by All-Pro Fasteners, Inc. from the products’ manufacturer or taken from consensus standards, and is in no manner originated, developed, created, enhanced, altered, or approved by All-Pro Fasteners, Inc.
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