Extra-Thick Flat Washers are designed to fit under the head of a bolt to provide a smooth bearing surface and distribute the fastener load to a wider area.
| Type | Washer |
| Style | Extra Thick Flat |
| Size | 5/16" |
| Material | Carbon Steel |
| Grade/Class | 8 |
| Thread Type | SAE |
| Inside Size | 11/32" |
| Outside Size | 11/16" |
| Thickness | 0.101 |
