ERA 234 Fortress BS Euro Keyless Egress Key & Turn Sashlock

The ERA British Standard Keyless Egress Mortice lock is an accredited front door lock. The locks are classified as providing keyless egress at all times.
Features
Rose measures: 52mm diameter x 14mm depth
BS8621:2004
Roses have hardened steel plates
There are 4 hardened steel rollers in the bolt
Ensures an easy exit in the event of a fire
Complete with Thumbturn cylinder which allows a keyless lever on the inside of the door
Especially relevant for entrance doors in multi-residential and other buildings