GRIDLOCK CENTRE GEARBOX
The Gridlock multi point lock is now obsolete, therefore the only alternative is to replace the centre lockcase assuming that that the rest of the lock is operational.
- PZ: 92/62mm
- Backset: 45mm
- Twin spindle
- To turn the latch round there is a screw in the back of the case that can be seen when the latch is pushed in, simply remove the screw and turn the latch round and put the screw back in place.