PREMIUM QUALITY MATERIAL: Expertly made with premium materials our mortise lock replacement is engineered for exceptional durability, ensuring reliable and long-lasting performance. Take control of the finer details by choosing your preferred backset, allowing for a customized fit that caters to your specific needs. Explore a variety of finishes to not only enhance functionality but also add a touch of personal style to your selection. ADAM RITE DOOR LOCK REPLACEMENT PARTS: Enhance your security with our complete set of protective elements: Mortise Cylinder, Thumbturn Cylinder, Trim Rings with 2 Keys. Easy to use and available in Duronotic Finish. These components offer a simple yet effective way to fortify your safety. THUMBTURN CYLINDER: Streamlines the locking and unlocking process with its user-friendly thumbturn mechanism, eliminating the need for a key. Engineered to be seamlessly compatible with Adams Rite 4066. This innovative cylinder offers enhanced convenience and security for your access control needs. MORTISE CYLINDER: This high-quality standard mortise cylinder is compatible Adams Rite 4036 and SC1 Schlage Keyway. It is thoughtfully designed with the popular SC1 Schlage Keyway ensuring compatibility with a wide range of locking systems. The package comes complete with two keys, providing convenience and security for your needs. CUSTOMER SATISFACTION GUARANTEED: Summit Doorware proud of our products they're built to last and work great. If you ever have a problem our helpful customer service team is here for you. We care about your satisfaction and will quickly solve any issues. Your trust in us matters and we're committed to providing top-notch quality and service to make sure you're happy with your purchase. Elevate the security of your storefront entrance by opting for the Summit Doorware Adams Rite Style Mortise and Thumbturn Cylinder Kit. This comprehensive kit offers a seamless replacement solution, featuring a mortise cylinder, thumbturn cylinder, and trim rings. Specifically designed for Adams Rite 4036, the mortise cylinder boasts a 1"" length, 1-5/32"" diameter, and a secure five-pin tumbler mechanism. It comes conveniently keyed alike with 2 keys and effortlessly fits any Adams Rite deadlock or deadlatch requiring a mortise cylinder. Enhancing convenience, the thumbturn cylinder replaces Adams Rite 4066, enabling you to lock the door with a simple bolt turn. The kit also includes durable trim rings suitable for 1-3/4"" thick doors, ensuring robust security. You can tailor the aesthetics to your liking by choosing between an Aluminum or Duronotic finish. Upgrade to Summit Doorware for a reliable and compatible solution, reinforcing the safety of your space.