Bolt

   bolt     
          material:carbon steel
            rating:4.8   5.8   8.8
  Standard product: DIN933 and DIN931, America marks ASME 307A
Specification size:M6- -M20, 1/4- -3/4
     Length ( mm ): 25--300, 1 inches - - 12 inches
 The surface is dealt with:Blue white Zinc, Huang Xin, Heat soaks Zinc, Turn black
                to wrap up:Carton  tray

We are a company specialized in the production of bolts