1.Astm A193,Din931/933/975 2.Finish:Self Color,Black,Teflon Coating(PTFE) Black, White,Blueness Zinc,Nickel Plating 3.MS,CS ... or 2 to 12' (12 feet) 5. Finish: Plain, black ,zinc plated, hot dip galvanized.HEX BOLTMaterial: ASTM A193 B7, B8, B8M ... ): Self Color, Xylan. Black ,Teflon Coating (PTFE) Black, White or Blueness Zinc (Cr.3 or Cr.6), Dacromet, Hot Dip Galv, Nickel Plating ...