Detailed Product Description 1) Materials: carbon steel, stainless steel, copper 2) Size: M3-M48 3) Surface treatment: zinc plating, nickel plating4) Standard: DIN, ANSI, JIS,ISO,GB5) Packing: bulk, box packing, other packing based on customers' options6) MOQ: 10,000PCS7) FOB Ningbo8) Payment: T/T, L/C