Case Size(mm): 147H x 80D Backset: 50mm Brass Forend (mm): 200L x 25W Can be modified for use as a fire escape lock by removing the facility to lock the handle (see 3R35X). Can be keyed alike with other detainer mortice locks. Latchbolt is withdrawn by key from either side and by lever handle from inside. Door is automatically deadlocked when closed, whilst snib can be used to hold the bolt back when it needs to be left ajar. The operating handle on the inside can be secured by key from either side. 5 Detainer mortice deadlocking latch suitable for external wooden doors where slam action is required. Also increases security of deadlocking. This item previously branded Chubb Locks.
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