Security Zinc Alloy Mortise Gate Knob Handle Set Front Wooden Door Lock with Cylinder

Solid Zinc Alloy Die-Casting: High-density die-cast zinc alloy construction offering high structural strength, anti-corrosion performance, and premium weight.

Grand Architectural Escutcheon Plate: Features an extra-long 578mm exterior escutcheon plate with ornate classic moldings and a 68mm width.

Ergonomic Interior Egg Knob: Designed with a smooth egg-shaped interior turn knob for convenient manual latch retraction and emergency operation.

Versatile Door Thickness Fit: Accommodates standard heavy entrance doors (51-70mm) as well as thin profile doors (40-50mm).

Ultra-High Security Keyway Cylinder: Advanced dual keyway mechanism combining single-row pins and leaf-cut tracks with up to 15,000,000 key combinations.

Certified Fire & Anti-Theft Protection: Certified compliant with Ministry of Public Security Grade A/B/C anti-theft tests and official fire-proof standards.

60mm Backset Master Lock Case: Driven by a smooth gear mechanism with heavy-duty SUS304 investment-cast and powder metallurgy internal parts.

Anti-Pry & Anti-Saw Protection: Solid SUS304 deadbolt embedded with internal hardened steel rods to block cutting, sawing, and forced entry.

Tamper-Evident Key Security: Includes 5 owner keys permanently sealed in a break-open plastic box plus 2 construction keys for safe project management.