mortise door lock 1.Made from Stainless Steel 304. 2.More than 400,000 Cycle Tested. 3.CE UL 4.nickel- coated mortise ... center distance: 60 or 70mm for opition. Tubular door lock (HLT576-PB)Lock FunctionEntrance, Privacy, Passage; left and right handed door ... options available. Bolt: 1/2" throw, Nickel plated.Detail :Lock FunctionEntrance, Privacy, Passage; left and right handed door are available ...