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This ARP 1/2-20 12-point nut kit is sized for 1/2-20 threads and notes an 11/16 socket fit, providing 12-point nuts for applications where that finer thread and specific socket engagement are required. Offered as a kit for engine or general mechanical fastening, it supplies the correct nuts for maintenance or assembly tasks that specify 1/2-20 hardware and 11/16 wrenching.
ARP 1/2-20 11/16 socket 12pt nut kit
