Attwood ZAMAK Chrome Plated Zinc Cleats - Pair - 4-1/2" [6244-6]ZAMAK Chrome Plated Zinc Cleats Pair 4 1 2" For decades, Attwood has set marine industry standards for great looking, durable, freshwater hardware. Our Perma Plate process provides the best chrome plating in the industry with eight individual layers of plating. Each layer adds to the products durability and corrosion resistance. This Perma Plate process produces the finest, most corrosion resistant ZAMAK hardware available exclusively from Attwood.