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This ARP 1/2-13 12-point nut kit contains 1/2-13 12pt nuts for use in engine and mechanical fastener applications that benefit from a 12-point wrenching surface. The kit is intended as a direct hardware solution for assemblies needing the 1/2-13 thread size and a 12-point profile for socket access. It’s useful for rebuilds, maintenance, or wherever that specific nut size is required.
ARP 1/2-13 12pt nut kit
