What is the difference between clear and yellow zinc platings?
Aside from the appearance of these two platings, the clear zinc has a lower corrosion resistance than the yellow, but all Fastenal’s clear zinc plated products are RoHS compliant while our standard yellow zinc platings are not. Clear zinc is required to achieve 12 hours before red rust appears in an ASTM B117 salt spray test. Yellow zinc is required to achieve 72 hours before the appearance of red rust.