Fastenal 0143576: 5/16"-12 x 1" Hex - Unslotted Drive Indented Hex Washer Head Zinc Finish #3 Point Steel Self-Drilling Screw


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Steel self-drilling screw with a hex washer head, unslotted hex drive, zinc finish, #3 point, full BSD thread, and 1/2 inch drive size. It is intended for fastening metal components to metal or other substrates without pre-drilling. The product conforms to ASME B18.6.3, SAE J78, and ASTM F1941/F1941M standards; the self-drilling point removes material and sizes the hole for the thread.