Yale Quattro Hinged Security Door Lock – No Cylinder, Black (Y8104BLK)
Also known as: Whitco Tasman MK3 Replacement

The Yale Quattro® is the fourth-generation hinged security door lock from ASSA ABLOY, designed as a direct replacement for the Whitco Tasman MK3 lockset. With a redesigned lock body featuring 50% new internal components, it offers improved durability, smoother snib and key operation, and enhanced overall performance.

Ideal for both retrofits and new installations, the Quattro is compatible with existing MK3 accessories, including cylinders, strikers, and 3-point locking kits. It also features the advanced DualSelect™ 2-stage key locking system, giving users the option to select privacy-lock or full deadlock when exiting.

Features:

• Direct replacement for Whitco Tasman MK3

• DualSelect™ key locking: privacy-lock or deadlock options

• Improved snib and key function

• Anti-jemmy wide serrated locking bolt

• Automatic latching with internal snib

• Key override of the snib at all times

• Accepts Euro profile lazy cam cylinders (not included)

• Pre-assembled handles for easy installation

• Compatible with Lockwood, Whitco & Interlock accessories

• Suit standard 20mm thick hinged screen doors

• Reversible handing (left or right)

• Zinc die-cast mechanism and stainless steel strike

• Meets AS 4145.2-2008 Level S7/D8 & tested to AS 5039/5041 standards

Note: Cylinder not included.
Finish: Black
Compatible with optional 3-point locking kit.

A modern and secure upgrade – engineered to outperform the original Tasman MK3.