Union C-Series (formerly known as Chubb) 3M50 5 Detainer Clutch Mortice lock
- Projecting stump on the forend engages into locking plate to prevent door being lifted from the frame in the locked position
- Suitable for timber sliding doors requiring automatic closing action
- Suitable for doors up to 50mm thick
- UK Manufactured with 10 Year Guarantee
- EN1634-1 use on 60 min timber fire doors
- Formerly known as Chubb