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South Coast Fasteners stocks the 4-40 x 5/16" Socket Set Screws, Cup Point, Coarse, Stainless Steel 316 for Fast 3-5 Day Shipping. It measures #4 diameter, 5/16" length, coarse thread, Stainless Steel 316. Used in tool-and-die, automation, and OEM work, it is part of our Cup Point Set Screws line, stocked across industries such as Automotive, Medical, and Electrical.
Pairs well with Flat Washers on the nut side. Please Contact Us if you need assistance in selecting the right product or placing an order.