ASTM F844 for Washers
| Bolt Size | Inside Diameter | Outside Diameter | Thickness |
|---|---|---|---|
| 3/8 | 7/16 | 1 | 0.083 |
| 1/2 | 9/16 | 1-3/8 | 0.109 |
| 5/8 | 11/16 | 1-3/4 | 0.134 |
| 3/4 | 13/16 | 2 | 0.148 |
| 7/8 | 15/16 | 2-1/4 | 0.165 |
| 1 | 1-1/16 | 2-1/2 | 0.165 |
| 1-1/8 | 1-1/4 | 2-3/4 | 0.165 |
| 1-1/4 | 1-3/8 | 3 | 0.165 |
| 1-3/8 | 1-1/2 | 3-1/4 | 0.180 |
| 1-1/2 | 1-5/8 | 3-1/2 | 0.180 |
| 1-5/8 | 1-3/4 | 3-3/4 | 0.180 |
| 1-3/4 | 1-7/8 | 4 | 0.180 |
| 1-7/8 | 2 | 4-1/4 | 0.180 |
| 2 | 2-1/8 | 4-1/2 | 0.180 |
| 2-1/4 | 2-3/8 | 4-3/4 | 0.220 |
| 2-1/2 | 2-5/8 | 5 | 0.238 |
| 2-3/4 | 2-7/8 | 5-1/4 | 0.259 |
| 2 | 3-1/8 | 5-1/2 | 0.284 |
For more information, see www.astm.org.