Key-operated latch
This key-operated door and window latch lock is easy to install and convenient to use. It is compatible with various types of aluminum profile doors and windows and is widely used in home renovations, commercial settings, and various construction projects. It locks simply by closing the door or window and provides theft protection when locked with a key, making it highly practical.

High-Quality Materials, Precision Craftsmanship
The lock body is made of high-strength zinc alloy through one-piece die-casting, resulting in a sturdy and stable structure that resists deformation and wear. It has passed a durability test of 100,000 opening and closing cycles, ensuring it can withstand long-term, frequent use and offering a long service life. Manufactured in strict accordance with the QB/T5338-2018 standard for door and window hardware, all performance metrics meet regulatory requirements. Surface treatment processes can be customized to customer specifications; having passed a 500-hour neutral salt spray test, the lock exhibits excellent weather resistance, corrosion resistance, and scratch and wear resistance. It withstands the erosion of complex outdoor environments—including sunlight, rain, and temperature fluctuations—and remains resistant to rust, fading, and surface scratches even with long-term use.

Impact-activated locking mechanism with key-only unlocking
Simply closing the door or window triggers the lock to engage; opening requires a key to unlock. With no automatic unlocking function, the locking mechanism is stable and reliable. This effectively prevents accidental opening of doors and windows, eliminates safety hazards, and provides outstanding burglary protection, safeguarding indoor property and home security.

Easy Installation, Wide Compatibility
Pre-drilled standard mounting holes save time and effort during on-site assembly, effectively reducing assembly labor hours for window and door manufacturers and lowering labor costs. Compatible with various types of aluminum profile windows—including sliding and casement windows—it is suitable for residential, commercial, and commercial construction applications.

Stringent Quality Control, Consistent and Reliable Quality
Every bolt lock undergoes multiple rigorous professional inspections before leaving the factory, including a 100,000-cycle opening and closing durability test and a 500-hour neutral salt spray corrosion resistance test. Manufactured in accordance with industry standards, the lock body features a sturdy and durable structure with stable locking performance, making it the preferred choice for window and door manufacturers, hardware wholesalers, and project purchasers.