This C-Series 3M50 5 Detainer Mortice Hook bolt by Union is manufactured in the UK, with a 10 year guarantee. The brass hook bolt clutches lock into frame, and the lock has been fire tested to 60 minutes for timber fire door applications (up to 50mm thickness).
Anti pick and anti sawDetainer locks provide a higher number of key combinations than lever locks
EN 1634-1 assessed for use on 60 minute timber fire doors
Painted gold finish available only
Used on sliding doors requiring an automatic closing action
Suitable for doors ..