... stainless steel,carbon steel3Size:length,5-60mm,head thick,0.1 head size.54model number: DIN,GB,ANSISS304 ... ,303 Security Screw 1type: Six Lobe Torx Recess Security Screw 2head type: Pan Head , Fillister Head , Round Head ... , Hex Head , Truss Head4Finish:Zinc plated,Nikel plated ...