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Hillman 12Mm x 1.25 Zinc-plated Steel Nylon Insert Nut (10-Count)

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  • Nylon Insert Lock Nuts are hex nuts that have a captive nylon washer mounted in their top to create a prevailing torque type lock nut

  • The undersized washer forms a compression grip that binds on the threads of the mating fastener to resist loosening

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