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Buy the 4-40 Nylon Insert Locknuts NM (Standard), Coarse, Grade N2 (A) Low Carbon Steel, Zinc Cr+3 online from South Coast Fasteners. It measures #4 diameter, coarse thread, Grade N2 (A) Low Carbon Steel with a Zinc Cr+3 finish. Built for bolted joints that need reliable thread engagement, it is part of our Nylon Insert Locknuts 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.