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Buy the 7/16-20 x 4 1/2" (PT) Hex Head Cap Screws, Fine, Grade 5 Medium Carbon Steel, Zinc Cr+3, China online from South Coast Fasteners. Also sold as hex bolts. It measures 7/16" diameter, 4 1/2" (PT) length, fine thread, Grade 5 with a Zinc Cr+3 finish. Suited to drywall, framing, and interior finish work, it is part of our Grade 5 Hex Cap Screws line, stocked across industries such as HVAC, Furniture, and Manufacturing.
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