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Buy the 9/16-18 x 4" (PT) Hex Head Cap Screws, Fine, Grade 5 Medium Carbon Steel, Plain online from South Coast Fasteners. These are also known as hex bolts. It measures 9/16" diameter, 4" (PT) length, fine thread, Grade 5 with a plain finish. Suited to remodeling and general construction, it is part of our Grade 5 Hex Cap Screws line, stocked across industries such as HVAC, Furniture, and Manufacturing.
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