Description GU 45/92 A3 Classic Secury Automatic 4 Deadbolt Top Locking Radius Ends Composite Multipoint Lock is built for situations where a composite or timber door needs secure automatic locking without relying on the key to engage the main bolts. When the door closes, the automatic slam mechanism activates the locking points immediately. The gearbox is positioned high within the door, providing a stronger attack point and improving resistance against forced entry. This system is commonly used as a direct replacement where a 45mm backset and 92mm PZ centre are already in place. The 20mm radius end faceplate provides an integrated look that aligns with modern composite door profiles. Its proportions align with common multipoint door locks, allowing it to sit flush within the door edge without modification. The overall length of 1770mm supports full-length engagement while maintaining a balanced visual line along the stile. The single spindle layout also keeps handle operation straightforward and consistent. Technically, a latch and deadbolt locking gearbox works in combination with four additional deadbolts positioned along the strip. The top deadbolt sits 310mm from the centre, while the bottom deadbolt measures 1280mm from the centre. This spread ensures compression and security across the full height of the door. Additionally, the lock is non-extendable which ensures alignment and long-term mechanical stability. It operates with a Euro cylinder and is compatible with both composite and timber doors.
