Yellow Zinc Coating

Yellow zinc coating (Also known as Zinc Chromate Coating) is a thin layer of zinc applied to steel fasteners by electroplating, followed by a yellow chromate conversion finish. It protects screws and bolts from corrosion and offers a decorative gold hue. Engineers and buyers choose yellow zinc when they need moderate rust resistance in indoor or mild outdoor settings. The coating thickness typically ranges from 5 to 15 microns, balancing durability with dimensional accuracy. Yellow chromate adds a passivation layer that extends service life and improves paint adhesion. This coating is cost-effective and applies evenly over complex threads without buildup. You will often see yellow zinc on automotive parts, household hardware, and electronic enclosures where aesthetic uniformity and cost-effective protection matter.