Chubb 3M51 Mechanism: 5 Detainer Case Size: 70mm Case Finish: Silver Forend Finish: Hammered Gold Keys Supplied: 2 Keyed Alike: Yes Masterkeyed: Yes Limited Differs: 25,000 Can be masterkeyed or keyed alike with other detainer mortice locks Clutch type hook allows door to be slammed and locked shut without the use of the key Hookbolt can be released by handle or key from one or both sides of the door, Can be deadlocked by one full turn of the key towards the forend A projecting stump on the forend engages into the locking plate to prevent the door being lifted when in the closed position |