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This ARP 9/16-12 12-point nut kit contains 9/16-12 12pt nuts for mechanical or engine hardware requiring that imperial thread size. Packaged as a nut kit, it provides the 12-point geometry favored where socket clearance is limited while maintaining correct thread fit. It’s suitable for service, repair, or assembly tasks specifying 9/16-12 nuts in equipment or engine components.
ARP 9/16-12 12pt nut kit
