These Yellow Zinc plated Steel 5/16" Grade 8 High Alloy Lock Washers are made from AISI-4037 alloy steel and heat treated to R/C 38-46, manufactured according to ASME B18.21.1 specifications. The zinc & yellow dichromate finish to prevent corrosion and provide a longer use life. They can also be used with Grade 5 & Grade 8 Bolts which makes them a more diverse Lock Washer.
| Bolt Size | 5/16" |
| Grade | 8 |
| Material | Steel |
| Plating | Zinc Yellow |
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