1. Different sizes avaliable upon request 2. Material:carbon steel,alloy steel,stainless steel AISI 304 or 316 All Types Screw Hook 1. Size: Different sizes avaliable upon request2. Material: carbon steel, alloy steel, stainless steel AISI 304 or AISI316 3. Surface: Zinc plated,chrome plated,nickel plated,polished