Optimum 4-Point Mortice Lock

30mm Backset
30mm Backset
30mm Backset
30mm Backset
40mm Backset
40mm Backset
50mm Backset
50mm Backset

The Optimum 4-Point Mortice Lock offers a new and improved locking system with enhanced furniture options available. When deadlocked, the Optimum 4-Point provides increased security with up to four points of locking. The shootbolt provides added security and seal compression, designed specifically for the New Zealand environment.


  • Upgraded furniture option (Palladium Xtra) features LockAlert™ indicator which shows at a glance if the door has been deadlocked
  • Upgraded furniture also comes with safety snib for at home security, enabling easy exit if required
  • Features four points of locking including the latch, deadbolt and shootbolts
  • Sequencing of locking points can be in any order (can be locked with or without shootbolts thrown)
  • When used with the correct strike the lock generates optimum seal compression to provide improved water and air seal performance, especially for large panel doors
  • The handing of the lockset is adjusted by reversing the orientation of the latch bolt
  • Standard kits are supplied with furniture and keyed cylinder
  • Can be keyed alike to other ASSA ABLOY CYL4™ 5-Pin locks for one key convenience
  • Achieves Australian Standards AS4145: 1993 (Part 2) Security Level S2 and Durability Level D2
  • New Zealand made


  • Available with 30mm, 40mm or 50mm backset
  • Short Throw 4-Point
  • Long Throw 4-Point
  • Available with standard Verona and Palladium furniture or upgrade to Palladium Xtra with LockAlert™ and safety snib
  • Double cylinder, cylinder and turnknob, half cylinder or half turnknob