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South Coast Fasteners keeps the 3/8-16 x 9/16" x 1 3/4" Hex Coupling Nuts, Coarse, A-563 Grade A Steel, Hot Dip Galvanize in stock and ready to ship. It measures 3/8" diameter, 1 3/4" length, 9/16" wide, coarse thread, A-563 Grade A Steel with a Hot Dip Galvanize finish. Designed for bolted joints that need reliable thread engagement. These coupling nuts are part of our Coupling Nuts line, stocked across industries such as Marine & Offshore.
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