Quality Zinc Alloy Door Chain Lock Latch Key Features and Specifications: Loop Bar Diameter: 6 mm (0.24 in) Total Size: 100 x 61.5 mm (3.94 x 2.42 in) Length x Width Mounting Plate Size: 44 x 26 mm (1.73 x 1.02 in) Mounting Hole Distance: 23 x 15 mm (0.91 x 0.59 in) Screw Size: 3.5 x 19 mm (0.14 x 0.75 in) Diameter x Length Package Includes: 1 Lock Latch, 8 Screws Durable Material and Finish: Constructed from zinc alloy, this lock latch offers exceptional strength and longlasting durability. The surface features an electroplated finish that resists rust, corrosion, scratches, and wear. Designed to maintain its appearance over time, it will not fade or deform even after frequent use, ensuring reliable performance and a clean look for years. Flexible and Secure Locking Mechanism: The loop bar swivels 0 to 180 degrees, allowing you to lock the door from multiple angles depending on your needs. This flexibility makes it ideal for securing doors even if they are slightly uneven or misaligned. The locking action firmly secures the door to its frame, enhancing safety and stability. Simple Installation and Operation: With all screws included, installation is straightforward. Attach the mounting plates using the provided fasteners. To use, simply lower the loop bar into position to lock, and lift it to unlock. When lifted, the bar can rotate to allow the door to open. Practical Applications: Ideal for securing wooden doors, providing an added safety layer to bedrooms, home offices, or storage areas Suitable for cabinets or display cases that require controlled access Effective for sliding doors or lightweight interior doors where conventional locks are not practical Designed for reliability, ease of use, and versatility, this zinc alloy chain lock latch is a practical and dependable security solution for residential and light commercial applications.