Genuine Fullex Replacement 45/92 Latch & Hook Single Spindle Lock Box Centre Case

The Genuine Fullex Replacement 45/92 Latch & Hook Single Spindle Lock Box Centre Case is an original Fullex multipoint door lock centre mechanism, engineered to restore the performance and security of uPVC, composite and timber doors fitted with a lift lever operated locking system. Designed as a direct replacement gearbox, this centre case features a latch and hook locking configuration, ensuring dependable engagement into the keeps for enhanced door security and smooth operation.

With a 45mm backset and 92mm (PZ) centre, this lock case is specifically manufactured for doors using a Euro cylinder and single spindle handle configuration. The precise fixing positions, with 108mm from the top fixing to the centre fixing and 108mm from the bottom fixing to the centre fixing, along with an overall case length of 228mm, make this replacement part ideal for repairing worn or failed Fullex multipoint mechanisms without the need to replace the entire strip.

This Fullex lock box is operated by lifting the door handle to engage the hook before turning the key, a common and reliable locking method found on many residential doors. The latch ensures the door remains securely closed, while the hook provides additional compression and resistance against forced entry, maintaining both security and weather sealing.

Regular maintenance of your multipoint lock gearbox will significantly extend its lifespan. Applying a specialist lubricant such as GT85 into the moving parts of the gearbox and hooks helps to prevent stiffness, reduce wear and maintain smooth locking action, particularly in high-use doors.

Whilst upgrading your multipoint door lock centre case, it is the perfect opportunity to improve other key components of your door furniture. Replacing your existing Euro cylinder with a high security 3 star cylinder will greatly enhance protection against snapping and forced entry. Similarly, upgrading your door handles at the same time can refresh the appearance of your door while ensuring compatibility with your new single spindle lock case.

If you require more information on how to replace a multipoint door lock gearbox, please see our blog here:
https://www.mbdiy.co.uk/blog/how-to/how-to-replace-a-multipoint-door-lock-gearbox/

Alternatively, contact our sales team for professional advice to ensure you select the correct replacement part for your door.