As Briton 5550 above, with the lever on the inside only to retract the latchbolt. Single cylinder on the outside operates the latchbolt with a single key turn.
View the full techspec here - Mortice Locking Options.
Speak to an expert now
Search our knowledge bank of tech specs, fitting guides and more
Visit our Knowledge BankOur latest brochure
Purchase steel doors regularly? Speak to one of our account managers and request to set up an account today.
Apply todayJoin our mailing list for industry news, product updates and more