High Quality Brass Hex Nut Spacer Standoff are available in brass,steel,stainless steel. Surface treatment according to the customer's needs,it can be Zinc-plating, the heat disposing, hot-dip galvanizing, black oxide coating, painting, powdering, color zinc-plated,rust preventive oil, silver plating, plastic, electroplating, anodizing etc. If you need it or have interested can contact us .