Interlock NZ

ASSA ABLOY acquired Interlock in 2021, a leading manufacturer and distributor of window and door security hardware in New Zealand. Interlock had a proven track record of developing innovative products and had developed successful export to Japan, UK and the US.

The Interlock story

Interlock New Zealand was founded in 1961 by Wellingtonians Stuart Young and Ron Davis. The company began in a caravan in Breaker Bay, focusing on manufacturing window and door security hardware. Over the years, it grew into a leading exporter in its field. In 2001, Interlock was acquired by Swedish conglomerate ASSA ABLOY, the world's largest lock manufacturer.

Interlock's strength was in its innovative product and production technologies which have since contributed significantly to ASSA ABLOY's philosophies of cross learning, benchmarking and cross-selling. Interlock added a competitive range of window security products to its sister companies in the region.

An ongoing legacy

ASSA ABLOY continues to manufacture select Interlock-branded products at its Auckland facility. This manufacturing hub maintains its local roots, employing hundreds of Kiwi's and celebrating their dedication to quality products, including:

  • Keying Systems: Interlock keying systems, including 5-pin and 6-pin cylinders, are designed for both residential and commercial applications. These systems are compatible with various locksets and can be integrated into ASSA ABLOY's 'One Key' system.

  • Window and Door Hardware: The North Shore facility specialises in customised door and window hardware products, powdercoating and keying many products on site.

In 2005, ASSA ABLOY closed its Wellington (Miramar) manufacturing plant, relocating some operations to Auckland and others overseas. This move was in response to competitive pressures from lower-cost imports.

interlock

Featured products

  • INTERLOCK

    Interlock Keying Systems

  • Interlock Clutha Lock

  • INTERLOCK

    Interlock Elevation - OBSOLETE

    The Elevation Window Control System can be configured to reflect the unique layout of your home.
  • INTERLOCK

    Interlock CHH Friction Stays

    A complete range of 4-bar friction stays manufactured from extruded Aluminium.
  • INTERLOCK

    Interlock Casement Restrictor Stays

    With operator safety in mind, casement restrictor stays offer a non-releasable restrictor for casement windows.

Let’s talk

Do you have questions or comments about any of our products, solutions or services? We would love to hear from you.