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