Sealing Washer, Fits Bolt Size 1/2 in Steel, Zinc Plated Finish, 5 PK, Usa Industrials, Mfr#: ZMBSW-19

Fastener Seal – Zinc-Plated Steel with Buna-N Rubber, Sealing Washer Type Metal Bonded Washer, Finish Zinc Plated, Metal Material Steel, Material Grade/Class Not Graded, For Screw Size 1/2 in, Inside Diameter 0.51 in, Outside Diameter 1 in, Maximum Thickness 0.157 in, Seal Material Buna-N, System of Measurement Inch, Pack Size Small Pack, Package Quantity 5