The Union C-Series 3C10 Euro Profile Cylinder Mortice Deadlock (case only, cylinders sold separately) is a heavy-duty locking solution, formerly branded as Chubb. Designed for doors thicker than 40mm, it features an extended deadbolt with a 14mm throw and a reinforced box strike for enhanced security. Compliant with EN1634-1 standards, it is suitable for 60-minute timber fire doors. The internally controlled dual-lever mechanism prevents manipulation and bypassing of the cylinder. This dependable deadlock is backed by a 15-year guarantee, ensuring long-term reliability and peace of mind. Multiple faceplate finishes are available to match existing door hardware.