http://www.superiorsteelindustries.net/ Stainless steel fasteners are made of steel that has been mixed with at least a ten percent compound of chromium, and possibly other metals, so that the steel doesn't rust or corrode. This makes stainless steel fasteners great for outdoor conditions, where there is a lot of water or moisture. We manufacture high nickel alloy fasteners, ferrous metal fasteners, industrial steel fasteners, industrial fasteners, steel fasteners, stainless steel fasteners, nickel alloy fasteners, alloy steel fasteners, nickel alloy fasteners, high nickel alloy fasteners, ferrous metal fasteners and non-ferrous metal fasteners.