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Buy the 5/16-18 x 1/2" x 1" Hex Coupling Nuts (Economy), Coarse, A-563 Grade A Steel, Zinc Cr+3 online from South Coast Fasteners. It measures 5/16" diameter, 1" length, 1/2" wide, coarse thread, A-563 Grade A Steel with a Zinc Cr+3 finish. A solid choice for bolted joints that need reliable thread engagement. These coupling nuts are part of our Coupling Nuts line, stocked across industries such as Automotive and Petrochemical.
Pairs well with Hex Bolts and Flat Washers to complete the assembly. Please contact us if you need assistance in selecting the right product or placing an order.