Interlocking Hook Lock
,Zinc Alloy Hook Lock
,Two Push Three Push Hook Lock
Two-Push and Three-Push Hook Locks
This two-push and three-push hook lock is crafted from a composite material combining zinc alloy and stainless steel. Designed specifically for two-push and three-push concealed screen windows, it securely locks the screen panel in place through an interlocking hook mechanism. It offers effortless and convenient operation, and all performance metrics meet industry standards, making it a commonly used opening and closing hardware component for both residential and commercial screen window installations.
Zinc Alloy and Stainless Steel Composite Base Material—All Performance Tests Passed
The main body of the lock is formed from high-density zinc alloy, while the core interlocking components are paired with stainless steel parts. The overall structure offers sufficient rigidity, excellent resistance to deformation and wear, and remains stable even after long-term, high-frequency opening and closing, with minimal risk of cracking.
The product is manufactured in strict compliance with the door and window hardware industry standard QB/T 5338‑2018. It has successfully passed a durability test involving 200,000 opening and closing cycles, ensuring stable performance even with frequent, long-term use. With a maximum locking force of 350 N, it provides a secure and reliable lock that resists external pulling forces, minimizing the risk of accidental unlocking or loosening. Having passed a 500-hour neutral salt spray corrosion test, it offers outstanding rust resistance and weather resistance, ensuring long-term, stable performance in coastal, rainy, and humid environments. Compatible with profiles 12 mm thick or greater, it meets the installation requirements for the vast majority of screen door and window profiles.
Surface finishes can be customized according to customer requirements to match the color schemes of various screen door and window designs.
Concealed top screw design for a clean, aesthetic appearance
Featuring a concealed top-screw locking mechanism, the lock body has no exposed parts after installation. It sits flush with the screen panel, ensuring it does not protrude or interfere with screen operation, and preserves the overall appearance. The design complements the minimalist style of screen windows, and the top-screw fastening method ensures a secure fit, preventing the lock body from shifting or loosening during use.
Standardized design with strong compatibility across multiple profiles
Compatible with mainstream aluminum profiles, the entire structure features a clear assembly logic and simple installation steps, facilitating rapid, high-volume assembly by door, window, and screen manufacturers while effectively reducing labor costs.
Wide applicability across multiple scenarios
Compatible with two-panel, three-panel concealed screen windows, and frame-within-frame screen windows; widely used in whole-home screen window installations for residential projects and high-end, fully-furnished real estate developments, while also meeting the demand for high-volume export supply of screen window hardware.
