- Fire rated for use on timber and steel doors
- Surface mounted on the outside of the door using concealed machine screws
- Supplied as standard for doors up to 60mm thick.
When locked, the mechanism is disengaged allowing the knob to freely rotate. When unlocked, the knob, spindle and mechanism engage allowing the shoots or latches of the panic bolt, or the panic latch, to be withdrawn from the outside. The knob remains engaged until it is re-locked.