1. material : stainless steel 2. surface: zinc plated 3. completion : pressing 1. Item name: nut from china2. Material: stainless steel, iron, copper, aluminum, carbon steel3. Surface treatment: nickel, white zinc, blue zinc, color zinc, yellow zinc, black zinc, chrome4. Standard: JIS, BS, GB, ISO, DIN, AISI5. Size: all sizes6. So as long as you have drawings, we can produce high-quality metal ...