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).
Features
Suitable for sliding or hinged doors up to 50mm thick
Can be master keyed or keyed alike with other detainer mortice locks
Supplied with 2 escutcheons
UK Manufactured
EN1634-1 use on 60 min timber fire doors
10 Year Guarantee Case Height: 144mm