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The ARP 9/16-18 12-point nut kit supplies 12-point nuts in the specified 9/16-18 size for applications that require this thread and head configuration. Offered as a hardware kit, these nuts are intended to be used where matching 12-point fastener interfaces are present, providing a direct-replacement option during assembly, maintenance or repair where the specified nut size is required.
ARP 9/16in -18 12pt Nut Kit
