Yale Locks 650550105025 Pm550 5 Lever Mortice Sash Lock 67mm 2.5in Polished Brass
The Yale PM550 5 lever mortice sashlocks offers a high level ofsecurity and are suitable for use on external timber doors. Thedeadbolt on the lock is locked or unlocked by key from eitherside.
These sashlocks also have a 14mm anti-saw deadbolt and arepierced to accept bolt through furniture.
A deadlock has a single deadbolt which is locked or unlocked andlocked by means of a key from either side, whereas, a sashlock hasboth a deadbolt and a latch which is operated from either side by alever handles.
The security level of mortice deadlocks or sashlocks ranges from2-5 levers. The higher the number of levers the more secure thelock is.
Finish: Polished Brass
Case Size: 67mm x 108mm (2.5in)
Backset: 44mm This is the measurement from the edge of the doorto the centre of the keyhole.
Centre: 57mm This is the measurement from the centre of thefollower, which operates the handles, to the centre of the keyhole.In the UK this is commonly 57mm.
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