1.11 years OEM experience 2.strict quality control 3.with advanced equipments 4.prompt delivery 5.non-standerd parts Item Nostainless steel self drilling screws Materialsiron,aluminum,steel,copper,plastic,carbon steel,nylon,bronze,solder alloy,HSS,tool steels or as per your requirementsDimensionsaccording to your drawingsSurface treatmentheat treatment,polishing,PVD/CVD coating,galvanized, ...