- Enhanced Security: This entrance door handle is ideal for both office and front doors. It features dual-side locking, allowing access with a key from the outside or a turn button from the inside. One key can operate multiple locks with the same keyway, simplifying key management. - Versatile Latch: The adjustable latch accommodates backsets of 60mm (2-3/8") or 70mm (2-3/4"). It fits doors with a thickness of 35 to 45 mm (1-3/8" to 1-3/4"). Please note that the latch plate is square and non-removable. - Durable Construction: Made from high-quality stainless steel with a sleek black finish, this lock set is designed to resist rust, ensuring long-lasting performance. It meets ANSI Grade 3 standards, exceeding 200,000 cycles, and includes a 5-pin brass tumbler cylinder for enhanced security. The solid column security bolt provides anti-sawing protection. - Easy Installation: Designed for a straightforward installation process, this door handle saves you time while ensuring a secure fit. It contains no small or complicated parts, featuring robust hardware built for durability. Each unit is packaged individually to guarantee perfect condition upon arrival. Usage Scenarios: 1. Install on your office door for secure access control, allowing employees to enter with a key while maintaining internal security with the turn-button lock. 2. Use on your front door to enhance home security, providing peace of mind with a single key system for all locks. 3. Perfect for rental properties, allowing landlords to manage access simply and effectively with one key for multiple locks.