... :SS.SA.PVD 3.Good quality Stainless steel door lock ,mortise lock,deadbolt lock ,knob locks,mortise lock Feature:1.mainly used 304 stainless steel ... :304 stainless steel Finish :SP.SS.PVD Suitable for :timer door ,metal door ,glass door frame door which are 38-55mm,50-60mm DOOR LOCK