This Union C-Series (formerly known as Chubb) 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).
- Can be master keyed or keyed alike with other detainer mortice locks
- Suitable for sliding or hinged doors up to 50mm thick
- Supplied with 2 escutcheons
- UK Manufactured with 10 Year Guarantee
- EN1634-1 use on 60 min timber fire doors
- Formerly known as Chubb