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The ARP 3/8-16 black hex nut kit supplies standard 3/8-16 hex nuts in a black finish for general fastening use. Intended for assemblies that call for the common 3/8-16 thread size, this kit offers a straightforward replacement option for tightening and securing threaded joints in engine-related or general mechanical applications requiring that imperial thread.
ARP 3/8-16 black hex nut kit
