... 2.Surface treatment: zinc plated, Cr3+C Type 17 Chipboard Screw Product Feature:1. Standard: GB, DIN,ANSI, BS, JIS2. Material ... so on3. Surface treatment: zinc plated, Cr3+Cr6+Zinc plated, black, head colored dacromet, HDG etc.4. Size:2.5x10mm – 8 ... need: America, Europe, Asia, and so on. Type 17 Chipboard Screw