High Security Ball Knob Door Lock Set with 3 Brass Keys - 70mm Backset

The stainless steel ball style door lock is designed for both residential and commercial applications. Featuring a durable 304 stainless steel construction with solid brass core cylinder, this lock provides reliable security with smooth operation.

This versatile door hardware is suitable for various door types including entrance doors, bedroom doors, bathroom privacy doors, and storage room doors. The lock comes with three brass keys and supports master key systems for convenient access control.

The ball knob design offers comfortable operation while maintaining a modern aesthetic. The lock mechanism features precision engineering for smooth turning action and reliable latching performance. The standard 70mm backset fits most door preparations.

Available finishes include satin stainless steel, polished stainless steel, antique brass, antique copper, and polished brass to match different interior design styles. The lock is compatible with doors ranging from 35mm to 50mm thickness.

Manufactured with high-quality materials and strict quality control, this door lock provides excellent durability and corrosion resistance. The solid brass cylinder ensures long-term performance with minimal maintenance requirements.

For commercial applications, we offer keyed-alike and master key systems to simplify key management. Construction key options are also available for temporary access during building projects.

The lock set includes all necessary mounting hardware for easy installation. Each unit is individually tested for smooth operation and proper alignment before packaging.

We support bulk orders and custom specifications including special finishes, backset adjustments, and unique keyway configurations. Minimum order quantities apply for custom requirements.