Electronic Locking

Interlock IB25 Series Electromechanical Drop Bolt


The Interlock IB25 Series Drop Bolts represent true engineering innovation, design excellence and the superior quality customers have come to expect from Interlock.

The innovative design assists the correct positioning of the lock and strike every time.

The IB25 is designed for use on most doors including double action doors.


  • Dual action:
    • Magnetic latch to capture the door
    • Deadbolt to secure the door
  • High Security:
    • Automatic deadbolting
    • 12.7mm diameter stainless steel bolt pin
  • Mortice or surface mount, horizontally or vertically
  • Available as Fail Safe or Fail Secure
  • Bolt position sensors
  • Anti-tailgate and Anti-tamper
  • Auto relock 0, 3, 6 or 9 seconds
  • Multiple attempts to lock and unlock
  • Multi voltage input (12 – 24VDC)
  • New Zealand made


  • Timber doors
  • Glass doors
  • Sliding doors
  • Aluminium doors
  • Hinged doors
  • Pivot doors
  • Double action doors