Product Information

Most important measurements are 35mm Backset, 92mm PZ

This is the mechanism inside the door that is operated by the handle.

Most likely to be the problem when a lock fails.

Reversable latch for left or right handed doors

Single Spindle for lever/ lever operations

The bar that goes through the lock must be one solid bar and not split in two

This lock will be suitable replacement for a split lock but access can be gained without a key when the door is unlocked

If you need a split lock with restricted access feauture you must purchase a full door lock

Fitting Advice

Gearbox re-attaches to the locking strip via three star head screws.

You may find that the deadbolt hole on the locking strip needs making larger by filing out. 

GU old style locks are only available in 30 & 35mm backset. If you have 45mm or 55mm you will need to replace with a new style GU full door lock

See inside our store for 30mm backset gearbox