Case Width: 76 mm Backst: 57 mm Centres: 48 mm features: Mortice nightlatch Accepts euro or oval profile cylinder The nightlatch function is operated using a half set of levers or knobs, with the lever on the inside used to retract the latchbolt A single cylinder operates from the outside with a single turn of the key to retract the latchbolt A catch operated from the lock forend will hold the latchbolt in the withdrawn position Anti-thrust feature prevents manipulation of the latchbolt when the door is closed The latch pull and cylinder must be ordered seperately Rebate kit available 77216