... .level:A 4.finish:galvanize Material1.Stainless Steel:SS201, SS303, SS304, SS316, SS410, SS4202.Steel:C45(K1045), C46(K1046),C203.Brass:C36000 ... ,12156.Aluminum: Al6061, Al6063 etc7.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045 8. Alloy steel: SCM435,10B21Specification& gaugeM0.8-M10Surface FinishingZn ... questions, please feel free to contact us! self-tapping screw with many size&use