Dimensional drawings cylinder - Locking cylinder (Z4) 3061 Thumb-turn front view - Active Comfort - Active (CO) Comfort - Passive (CO MP) Freely rotating - Active (FD) Freely rotating - Passive/hybrid (FD MP/MH) Half cylinder - Active (HZ) Half Cylinder - Passive (HZ MP) DoorMonitoring - Active (DM) DoorMonitoring half cylinder Active (DM HZ) Anti-panic Freely rotating - Active (AP2 FD) Anti-panic Free rotating - passive (AP2 FD MP) Anti-panic Reader on both sides - Passive (AP2 BL MP) Scandinavian Oval - Active (SO) Scandinavian Oval - Passive (SO MP) Scandinavian Round - Active (RS) Scandinavian Round - Passive (RS MP) Swiss Round Comfort - Active (SR CO) Swiss Round Comfort - Passive (SR CO MP) Swiss Round half cylinder - Active (SR HZ) Swiss Round half cylinder - Passive (SR HZ MP) United Kingdom Mortise - Active (UKM) United Kingdom Mortise - Passive (UKM MP) United Kingdom Outer Cylinder - Active (UKR) United Kingdom External Cylinder - Passive (UKR MP)