This U.S.S. MC2 flat washer is made of prime quality medium carbon steel and meets grade 8 specifications. It undergoes a quenching and tempering process to achieve a hardness of R/C 38-45, ensuring strength and reliability when used with a 5/16” bolt. Each washer is 1/16” of an inch to make sure the hold on your assembly is tight and secure.
| Bolt Size | 5/16 in. |
| Inner Diameter | 3/8 in. |
| Outer Diameter | 7/8 in. |
| Thickness | 1/16 in. |
| Grade | 8 |
| Material | Steel |
| Plating | Zinc Yellow |
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