screws with zinc or nickel plating material:1018,1010 carbon steel,stainless steel standard:ISO,DIN,JIS,ANSI,GB we can produce all kinds of screwswith high quality and good service.cap head screwspecification1.material:carbon steel,stainless steel,and according to your demand2.plating:Nickel,Zinc3.size:all size4.packing:exporting packing(bag-carton-pallet)5.port:shenzhen6.OEM is welcomealso we ...