Cylindrical door lock 1)Material:steel or rion 2)Function:ET BK PS DM 3)Door thickness:Fits doors 35mm to 50mm Cylinder door lock,3keys1)Door thickness:fits door 35mm to 51mm2)Backset:adjustable 60mm or 70mm3)Material: iron,stainless steel,brass4)Function:entry,privacy,passage,dummy5)Finish:satin nickel,polished brass,poished chrome,antique copper,antique brss,satin stainless steel,black nickel6) ...