Chubb / Union 3M51 Clutch Bolt Door Lock

"5 Detainer mechanisms for sliding or hinged doors.. Handles can be lifted to one or both sides and key. can be used on either side to secure both the bolt,. handles and releases hook.. Bolt thought fixing also provided.. Masterkeyable with other detainer locks.. Case size 70mm ? basket 43mm.. Supplied with 2 keys as standard.. Finishes available: Simulated brass.. "