These screws have the bright silvery finish common on hardware store hinges, wood screws, and bolts. Like our other plated screws, these are hardened steel screws. Clear Zinc is primarily decorative, but does offer moderate corrosion resistance. It is ideal as an exposed fastener for interior applications. If true corrosion resistance is needed No-Co-Rode, Stainless Steel, silicon bronze, or solid brass are better choices. Available in Square Recess only. Due to usage variables, we can not guarantee these screws against corrosion. Made in USA/Canada/Taiwan. #2 Square Recess.