Dado di bloccaggio flangia seghettato zinco 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 grossolano 250 pz

Coarse Thread Case Hardened Serrated Flange Lock Nuts Zinc Plated. SERRATED FLANGE LOCK NUTS ZINC FINISH The serrations make this a lock nut. NOTpreviously rejected for quality issues or rescued from a scrap yard.

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