If your existing Atrium patio door lock is worn, damaged, or no longer operating properly, this Atrium door lock replacement provides an exact-fit solution designed to restore security and smooth operation. Built with heavy-duty solid brass components, this replacement lock set is engineered for long-lasting durability and dependable performance. This complete Atrium lock set includes the mortise lock, keyed cylinder, interior and exterior levers, strike plate, screws, and installation hardware, making it an ideal replacement for many original Atrium patio door lock systems. Designed as an Exact Atrium Door Lock Replacement Replacing an older patio door lock doesn't have to mean replacing the entire door. This Atrium replacement lock is manufactured to match the original hardware, helping homeowners, contractors, and locksmiths restore security while maintaining the appearance of the existing door. Whether you're repairing a worn lock, replacing damaged hardware, or upgrading an older Atrium patio door, this replacement lock set is designed for a precise fit and dependable performance. Complete Atrium Lock Set Includes Heavy-duty mortise lock Solid brass interior and exterior levers Keyed cylinder with two keys Strike plate Installation screws and mounting hardware Professional-Grade Construction Unlike many aftermarket replacement locks, this Atrium door lock replacement features forged solid brass components and commercial-quality construction designed to withstand years of daily use. Its durable design makes it an excellent choice for residential patio doors and high-use applications where reliable security is essential. Why Buy from Countryside Locks? Countryside Locks is operated by professional locksmiths with decades of experience installing and servicing patio door hardware. We carefully select replacement lock sets that meet our standards for quality, reliability, and ease of installation, helping customers confidently find the correct replacement hardware for their doors. Product Specifications One Day Sale Heavy duty mortise lock-set made for a wood hinged Atrium patio door. Fits doors from 1-3/8" to 1-7/8" thick. Forged solid brass with polished brass finish; lock chassis is high-pressure cast; latch face, mortise cylinder, escutcheons, and levers are all of solid brass. Levers: 4 -1/2 Inch Solid Brass Mortise Lock Backset: 1-3/4 inch (45mm) narrow stile Door thickness: 1-3/4 inch Lock faceplate measures: 15/16 by 9-5/8 inches. Handle Escutcheon Plate: 1-3/16 x 8-1/4 Flat, 3 screw holes, solid brass Cylinder Type: Single cylinder lock, Crescent thumb turn inside. Atrium Keyed Cylinder: rekeyable Schlage SC-1 keyway with 2 keys Spindle for handle: 5/16 (8mm) x 3-1/4 inch (83mm) on the Square. Distance from the center of handles to center of Cylinder 3-5/8 inches (92mm) Handing: This handle set can be used in Left and Right hand applications.
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