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This ARP 5/16-18 12-point black oxide nut kit (10-pack) supplies high-strength fastener hardware for engine and accessory installations requiring compact 12-point nuts. The black oxide finish provides basic corrosion resistance and a subdued appearance. These nuts are intended for use where ARP-specified 12-point hardware is required for assembly.
ARP 5/16in-18 12pt Black Oxide Nut Kit (10-Pkg)
