Cap Nut, Made of Stainless Steel Material, Customized Designs Accepted Cap NutMaterials: stainless steel, A2 (304) and A4 (316), steelFinish: zinc-plating, copper, black and other colorsSpecifications: M3 to M64Standards: GB923 and DIN1587Packing: boxes, cartons or bulkComes with RoHS compliantCustomized designs are accepted