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Hex head cap screws have a hexagonal head and are uniformally threaded for use with a corresponding threaded nut or into a threaded tapped hole. Mainly used in repair or construction projects.

5/16-18 x 1&quot; Hex Head Cap Screw - Carbon Steel - Zinc - UNC - Grade 5 - USA - 100 Pack - BBI 457078

5-16-18-x-1-hex-head-cap-screw-carbon-steel-zinc-unc-grade-5-usa-100-pack-457078

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