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The 5/16"(#20)-9 x 1" (FT) Unslotted Indented Hex Washer Head Self Tapping Screws (Type A), Coarse, Zinc Cr+3 is available now from South Coast Fasteners with fast 3-5 day shipping. It measures 5/16" diameter, 1" (FT) length, coarse thread, Steel with a Zinc Cr+3 finish. Designed for HVAC and metal building assembly. These self-tapping screws are part of our Self-Tapping Screws line, stocked across industries such as Electrical, HVAC, and Construction.
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