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Buy the 5/16-18 2H Heavy Hex Nuts (Box), Coarse, A194 / SA 194 Steel, Plain online from South Coast Fasteners. It measures 5/16" diameter, coarse thread, A194 / SA 194 Steel with a plain finish. Designed for machinery, structural, and general fabrication work, it is part of our Structural and Heavy Hex Nuts line, stocked across industries such as Automotive, Petrochemical, Marine & Offshore, and Metal & Mineral Mining.
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.