Millenco Upvc Door Lock 3 Hook 2 Bolt No Cam 35 Backset 117pz MA51115A
This is the Mantis 1 Millenco 117mm PZ door lock which has zero Roller Cams whilst still having 3 Hooks and 2 Deadbolts. This lock was often used on doors with a flush fitting opening door sash vent either in a composite or timber door system.