Schlage Residential F51A Broadway Lever Entry Lock with Single Cylinder FunctionProfessional Residential Entry Lock SolutionThe Schlage Residential F51A Broadway Lever Entry Lock delivers reliable single cylinder entry control for residential applications. This Grade 2 cylindrical lock features a 5-pin C keyway cylinder with dual backset compatibility for 2-3/8" or 2-3/4" installations. Designed for door thickness range of 1-3/8" to 1-3/4", the lock includes a 1" x 2-1/4" latch with 1/2" throw and full lip radius strike for secure operation.Professional Features & BenefitsDoor Thickness Compatibility: Accommodates 1-3/8" to 1-3/4" doors with dual backset options for 2-3/8" or 2-3/4" installations.Grade 2 Commercial Rating: ANSI/BHMA A156.2-2017 Commercial Grade 2 and ANSI/BHMA A156.39-2015 Residential Grade AAA certification for reliable performance.Dual Backset Flexibility: Universal latch design fits either 2-3/8" or 2-3/4" backsets for versatile installation options.Professional Latch System: 1" x 2-1/4" latch with 1/4" radius corner faceplate, 7/8" housing diameter, and 1/2" throw for secure latching.Complete Strike Package: Includes 1-5/8" x 2-1/4" radius corner full lip strike for proper door frame preparation.5-Pin Security: C keyway cylinder with 5-pin configuration and two keys per lock for enhanced security control.Easy Installation: 3-step installation process requiring only a screwdriver for quick professional setup.Manufacturer Warranty: 10 Year warranty coverage for added confidence and protection.Standard FeaturesCertification: ANSI/BHMA A156.2-2017 Commercial Grade 2; ANSI/BHMA A156.39-2015 Residential Grade AAA; Available UL Listed for 3-hour fire door (F10, F40 (CSV Only), F51A, F80 functions).Latch: 1"x 2-1/4", 1/4" radius corner faceplate, 7/8" housing diameter, 1/2" throw, circular drive-in included, universal latchStrike: 1-5/8" x 2-1/4" radius corner, full lip, no boxBackset: Dual backset latches, fits either 2-3/8" or 2-3/4" backsetsCylinder: 5-Pin, C keyway, keyed alike (KA4)Door Range: 1-3/8" 1-3/4"Keys: Two per lock, 5-pin, C sectionInstallation & OperationReview manufacturer specifications and verify door preparation requirements including door thickness range of 1-3/8" to 1-3/4" and backset selection of 2-3/8" or 2-3/4".Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the cylindrical lock installation.Prepare door by drilling the required 2-1/8" cross bore and 1" edge bore, plus frame preparation for the full lip radius strike.Install the latch assembly and strike hardware, securing all components per manufacturer torque specifications.Mount the lock cylinder and lever assembly, adjusting for proper alignment and smooth operation of the keyed entry function.Test lock operation including key function, interior turnbutton operation, and automatic unlocking when door is opened from inside. Refer to manufacturer documentation for complete installation details and troubleshooting.Professional ApplicationsResidential Entry DoorsSingle Family Home SecurityApartment and Condominium UnitsTownhouse and Duplex PropertiesResidential Rental PropertiesHome Office Entry PointsSecondary Residential EntrancesWhy Choose Schlage Residential Quality?Schlage Residential F51A entry locks deliver professional-grade reliability with zinc and steel construction rated to Grade 2 commercial standards and Residential Grade AAA certification. The 10 Year warranty provides long-term protection and confidence in demanding residential applications. Engineered with dual backset flexibility and easy 3-step installation for dependable performance where secure entry control is essential. ANSI/BHMA Grade 2 rated mechanical knob or lever with solid brass construction and SecureKey re-keyable cylinder. Support Resources: Manuals Hub: Schlage Manuals, Installation Guides & Templates (https://www.schlage.com/en/home/support/installation-manuals-templates.html) || Installation Guides: F-Series Knob and Lever Installation Instructions (https://www.schlage.com/content/dam/sch-us/documents/pdf/installation-manuals/P515-302.pdf) || Door Prep Templates: F10/F40/F51 Knob and Lever Door Prep Template (https://www.schlage.com/content/dam/sch-us/documents/pdf/installation-manuals/P513-593.pdf) || FAQs & Support: Schlage Product FAQs (https://www.schlage.com/en/home/support/faqs.html)