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An ARP 5/16-18 12-point nut kit supplied for applications that require 12-point fasteners in that thread size. The kit provides correctly sized replacement nuts for reassembly during engine or component service, ensuring proper engagement with matching bolts and fasteners. Packaged as a straightforward hardware kit, it supports maintenance and rebuilds where 5/16-18 12pt nuts are specified.
ARP 5/16-18 12pt Nut Kit
