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Buy the 5/16-18 Square Machine Screw Nuts, Coarse, Steel, Zinc Cr+3 online from South Coast Fasteners. It measures 5/16" diameter, coarse thread, Steel with a Zinc Cr+3 finish. Built for machinery, structural, and general fabrication work. These square nuts are part of our Square 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.