1Place of origin:Guangdong China(mainland) 2Material:stainless steel,carbon steel 3Size:10-32 4model number: DIN,GB,ANSI SS304,303 ... Security Screw 1Place of origin:Guangdong China(mainland)2Material:stainless steel,carbon steel3Size:length,5-60mm,head thick,0.1 head ... , Hex Head , Truss Head4Finish:Zinc plated,Nikel plated,Oxidation,etc Stainless steel Security Screw