... 4.Finish:zinc plated and so on NameSelf Tapping Screw MaterialLow carbon steel,Stainless SteelFinishwhite zinc plated, yellow zinc plated,plain ... term T/T, WU,MG Applications Stainless steel plate, metal plate, galvanized steel, engineering, installationmetal curtain wall of metal light ... , containers, shipbuilding, refrigeration equipments Cross recessed ball head stainless steel tapping screw