Durable Construction: Made from weather-resistant, die-cast aluminum with a full race ball bearing design for smooth operation, these heavy-duty door pivot hinges are perfect for storefront doors. High Security: Completely tamper-proof and provides a high level of security, especially when using Adams Rite (A/R) cam, ensuring peace of mind for your commercial aluminum storefront door. Easy Installation: Features a fully retractable, spring-loaded top pin and includes all necessary fasteners, making it simple to install for both recessed and flush face frame aluminum doors. Versatile: Offers a 1/8” vertical adjustment and supports doors weighing up to 125 lbs. Available in left and right-hand options, this door pivot hardware replaces most major door manufacturers. Reliable Performance: The bottom door pivot hinge portion supports the entire weight of the door, preventing sagging and ensuring long-lasting, reliable performance for your commercial door hinges., Manufacturer: Ilco