This 856 lock features 2 hooks and 2 rollers and is commonly used on UPVC doors.
It is supplied in 2 parts with integrated shootbolts.
- Overall length - 1410mm (main Lock)690mm (extension)
- Distance between outer hooks - 1485mm
- Distance between inner rollers - 710mm
- Undo the screw in the side of the lock case adjacent to the latch. Remove the latch, reverse, reinsert and repace the screw.