These Union 2234 5 lever mortice sashlocks are non-handed and designed for timber doors up to 54mm thick.
It's 14mm brass deadbolt contains hardened steel rollers for resistance against hacksawing.
These anti-pick sashlocks are also EN 1634-1 assessed for use on 60 minute fire doors.
With holes on either side of the spindle to allow for bolt through handles.
Supplied with 2 keys and a security box striking plate.