Yale Lockmaster PL18 45mm 3 Hook 20mm Radius End Multipoint Door Lock

The Yale Lockmaster PL18 45mm 3 Hook 20mm Radius End Multipoint Door Lock is a robust and reliable multipoint locking solution manufactured by Lockmaster, engineered to deliver strong security and smooth operation on composite and timber doors. Designed around a euro cylinder lock type, this multipoint door lock operates using a lift lever mechanism which engages the central latch and hook system alongside two additional hooks, creating multiple secure locking points along the full length of the door.

Featuring a 45mm backset measurement and a 20mm radius end faceplate, this lock is suited to modern door profiles where precision fit and dependable performance are essential. The lock box is centrally positioned and incorporates a latch and hook locking feature, ensuring consistent alignment and firm engagement when the handle is lifted. With a dual spindle configuration and 92/62mm (PZ) centres, the Lockmaster PL18 offers compatibility with a wide range of door handles, making it a versatile replacement option for existing installations.

The locking points are evenly distributed, with a hook-to-hook measurement of 1490mm, a top hook to centre distance of 725mm, and a bottom hook to centre distance of 765mm, delivering balanced pressure across the door leaf. The lock has an overall length of 1770mm, ensuring full door coverage and improved resistance against door flexing and forced entry. This model is non-extendable, maintaining a fixed and solid locking structure for long-term durability.

For ongoing performance, regular maintenance is recommended. Light lubrication of the internal gearboxes and moving components using GT85 helps keep the multipoint door lock operating smoothly, reduces wear over time, and prevents stiffness caused by dirt or moisture ingress. Routine checks and lubrication can significantly extend the lifespan of your locking system.

Whilst upgrading your multipoint door lock, it’s the perfect opportunity to enhance both security and appearance. Pairing this lock with a new door handle can instantly refresh the look of your door. Additionally, upgrading your existing cylinder to a high-security 3 star euro cylinder provides increased protection against lock snapping, drilling, and bumping, helping to bring your door security up to modern standards.

If you require more information on how to correctly measure a multipoint door lock, please see our detailed guide on our blog:
https://www.mbdiy.co.uk/blog/how-to/how-to-identify-a-multipoint-door-lock/

Alternatively please contact our sales team who will be happy to help.