Fireproof Solid Zinc Alloy Tubular Knob Gate Door Handle Lock with Cylinder Set

3rd Gen Tubular Mechanism: Advanced internal structure featuring integrated anti-saw engineering for enhanced door security.

Reinforced Anti-Saw Deadbolt: Solid brass deadbolt built with a heavy hardened steel insert to resist cutting and forced entry.

Anti-Drill American Style Cylinder: Constructed from high-purity solid brass casing, plug, and pins engineered for drilling resistance.

Smooth Gear-Driven Mechanism: High-quality steel turning rack gear ensures effortless, whisper-quiet latch operation.

CNC Precision Pinning: Double-row angle-cut pins machined via CNC technology deliver maximum key combination complexity.

Adjustable Deadbolt Backset: Easily adjusts between 60mm (2-3/8") and 70mm (2-3/4") to fit diverse door preparations.

Universal Reversible Handing: Fully reversible design easily adapts to both left-hand and right-hand door configurations.

Global Keyway Profiles: Compatible with standard double-row keys, plus Schlage, Kwikset, Weiser, and Computer keyways.

Construction Key Function: Enables safe site access during construction, automatically revoking access once owner keys are used.

10-Year Mechanical Warranty: Delivers reliable long-term service and durability for standard wooden and metal doors.