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