Dual side security and convenient access - The entrance door handle is designed for office or front door use. It can be locked and unlocked from both sides by an outside key or an inside turn button. The same key blank and keyway can operate the lock, providing consistent keying for convenient access. Adjustable latch for versatile installation - Backset options: 60 mm (2-3/8") or 70 mm (2-3/4"). - Suitable for doors 35–45 mm thick (1-3/8" to 1-3/4"). - Latch plate is square and non-removable for a clean, secure fit. Durable material and strong security features - Construction: stainless steel plated lock set with a black finish that resists rust. - Performance: ANSI Grade 3 standard; exceeds 200,000 cycles. - Cylinder and protection: 5-pin brass tumbler cylinder; solid column security bolt for anti-sawing protection. Easy installation and reliable build - Simple, straightforward fitting that saves time and provides secure installation. - No small or fiddly parts; solid hardware designed to endure over time. - Packaged individually to ensure perfect condition upon arrival. Use scenarios - Office entry: use on the main door to secure a reception or work area while allowing quick entry from inside and controlled access from outside. - Front entry for a small business or home: provides reliable security with dual-side operation and a durable black finish that blends with most door styles. - Rental or multi-tenant property: compatible with standard doors, offering consistent keying and long-lasting performance with easy maintenance and installation. Key attributes at a glance - Function: dual-side lockable handle with inside thumb-turn and outside key access. - Compatibility: backset 60 mm or 70 mm; door thickness 35–45 mm. - Material and finish: stainless steel plated, black finish; rust-resistant. - Security: ANSI Grade 3; >200,000 cycles; 5-pin brass tumbler; anti-sawing bolt. - Installation: easy fit, packaged individually for shipment integrity.