gread: 4.8,8.8
  surface: PL,ZP,YZP, NI, BLACK and so on
  din 933 /931 hex bolts
  size: from M3 to M24
  material: carbon steel
  din 933 /931 hex bolts
  size: from M3 to M24
  material: carbon steel
  surface: PL,ZP,YZP, NI, BLACK and so on
| Place of Origin: | Zhejiang China (Mainland) |