| Place of Origin |
Fujian China (Mainland) |
1. Name:Knurled screws 2. Size: M3-M30 3. Material: carbon steel / alloy steel / stainless steel 4. strength Class: 4.8 / 6.8 / 8.8 / 9.8 / 10.9 / 12.9 5. Plating: Chromiun / galvanized (black, colorized, white, green) / zinc-iron/ black oxide / Dacromet / Geomet 6. Standard: DIN,ANSI, BS, JIS, SES,HES,KIS,non-standard, etc. 7. Note: we could produce various of fasteners conform to drawings.