Trilock Series


The Gainsborough Trilock Series combines the latest in door hardware design with the world renowned Trilock '3 in 1' technology. The Trilock Traditional Series combines timeless styling, advanced engineering principles and world class tarnish resistant decorative finishes. The Trilock Contemporary Series is styled for today’s building and renovations, featuring modern escutcheon and handle styling, combined with world class tarnish resistant finishes.


Trilock Features

  • Trilock features 4 fixing points for added strength against attack from outside.
  • The key operates all functions of the lock, allowing the external door to be opened without rotating the knob or lever. This conveniently leaves a spare hand free for carrying parcels and the like.
  • The solid brass, 5 pin Euro cylinder is securely housed within the Trilock body.
  • For lever version - levers can be easily rotated during installation, for use on left or right-handed doors.
  • Trilock readily replaces old keylocks fitted to a standard 54mm (2 1/8") cross bore hole.
  • Trilock Contemporary will also replace Trilock Traditional by drilling two new top fitting holes.
  • Features 60mm backset.
  • Suits doors 33mm to 45mm thick.
  • Trilock can be keyed to other Gainsborough residential locks for same key convenience.
  • The Trilock Contemporary Series will readily replace the Trilock Traditional Series, in a few simple steps.

3 in 1 Operation

3 functions in the one lockset
  • Lockset with safety: Depressing the button on the inside of the door engages the Trilock lockset mode. This locks the door from the outside, however, it is safe to exit without a key in an emergency by simply turning the inside knob or lever.
  • Deadbolt security: Trilock houses a key-operated double cylinder deadbolt, with a sturdy 20mm throw. (Single cylinder version features inside turn-button.)
  • Passage set convenience: When Trilock is unlocked and unsnibbed, it operates as a standard passage set, allowing free access in or out of the home.


Trilock models available

Trilock Double
Double Cylinder

Key from either side will lock or unlock deadbolt

Also features other functions:
  • Push-button lockset mode
  • Passage set convenience when unlocked and unsnibbed (see ‘3 in 1’ above).
Trilock Single
Single Cylinder

Key from outside or turn-button from inside will lock or unlock deadbolt.

Also features other functions:
  • Push-button lockset mode
  • Passage set convenience when unlocked and unsnibbed (see ‘3 in 1’ above).
Trilock Dummy Sets
Dummy Sets

A non-operational handle set for the fixed side of a double door.



5 year limited tarnish resistant and 10 year limited mechanical

Gainsborough Hardware Industries Limited guarantees to repair or replace this product if within five (5) years from the proven date of purchase it tarnishes, discolours or corrodes; or if within ten (10) years from the proven date of purchase any mechanical defects occur. Applies only when properly installed and subjected to no more than fair wear and tear. This guarantee does not extend to labour costs, personal loss, death or injury, or economic, consequential or property damage of any kind whatsoever.

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