Hooks come in a variety of materials including Steel, Brass, Stainless Steel, Zinc Plated(ZP), Yellow Zinc Plated(YZP), Nickel Plated(NP), Brass Plated(BP), Antique Brass Plated(ABP), Epoxy, Painted(PNT)and even PVC. As a bulk supplier of plain square hooks, cup hooks in shouldered and unshouldered varieties, and screw hooks, Baron Hardware has an always-ready stock for you.