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South Coast Fasteners stocks the 5/8" Flat Washers (USS), Medium Carbon Through Hardened Steel, Plain (Dims: 11/16" I.D. x 1 3/4" O.D.), USA for fast 3-5 day shipping. It is made from Medium Carbon Through Hardened Steel with a plain finish. Suited to preventing pull-through on softer materials, it is part of our USA Flat Washers line, stocked across industries such as Automotive, HVAC, and Construction.
Pairs well with Hex Bolts and Finished Hex Nuts to complete the assembly. Please contact us if you need assistance in selecting the right product or placing an order.