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Structural Washer
These washers are to be used with matching structural bolts and nuts for use in structural applications. They are used with fasteners to help span clearance holes and to distribute the load from tightening. The most common type is ASTM F436, which can be used with multiple different grades of structural bolts.
Dimensions
| Nominal Dia. | ID | OD | Thickness |
|---|---|---|---|
| 1/2 | 17/32 | 1 1/16 | 0.097 - 0.177 |
| 5/8 | 11/16 | 1 5/16 | 0.122 - 0.177 |
| 3/4 | 13/16 | 1 15/32 | 0.122 - 0.177 |
| 7/8 | 15/16 | 1 3/4 | 0.136 - 0.177 |
| 1 | 1 1/16 | 2 | 0.136 - 0.177 |
| 1 1/8 | 1 3/16 | 2 1/4 | 0.136 - 0.177 |
| 1 1/4 | 1 3/8 | 2 1/2 | 0.136 - 0.177 |
| 1 3/8 | 1 1/2 | 2 3/4 | 0.136 - 0.177 |
| 1 1/2 | 1 5/8 | 3 | 0.136 - 0.177 |
| 1 5/8 | 1 3/4 | 3 1/4 | 0.178 - 0.280 |
| 1 3/4 | 1 7/8 | 3 3/8 | 0.178 - 0.280 |
| 1 7/8 | 2 | 3 1/2 | 0.178 - 0.280 |
| 2 | 2 1/8 | 3 3/4 | 0.178 - 0.280 |
| 2 1/4 | 2 3/8 | 4 | 0.240 - 0.340 |
| 2 1/2 | 2 5/8 | 4 1/2 | 0.240 - 0.340 |
| 2 3/4 | 2 7/8 | 5 | 0.240 - 0.340 |
| 3 | 3 1/8 | 5 1/2 | 0.240 - 0.340 |
| 3 1/4 | 3 3/8 | 6 | 0.240 - 0.340 |
| 3 1/2 | 3 5/8 | 6 1/2 | 0.240 - 0.340 |
| 3.75 | 3 7/8 | 7 | 0.240 - 0.340 |
| 4 | 4 1/8 | 7 1/2 | 0.240 - 0.340 |