For more than 100 years, Schlage has been turning homes into havens. That’s why we make distinctive door hardware that’s not only designed to match your personal style, but to also protect what matters most. Choose from high-quality interior door knobs and levers in a variety of functions and trust your home to Schlage. From the Manufacturer The F-Series features superior quality locks backed by a Lifetime Mechanical and Finish Warranty when used in residential applications. Meets or exceeds ANSI Grade 2 performance standards including 400,000 cycle ANSI Grade 2 requirements. The F-Series line's elegant craftsmanship and sleek designs blend with any décor, making Schlage the perfect choice for any home. Keyed entry locks come with nickel silver cylinder pins and keys for long life and reliable performance. Triple option latches are adjustable to 2-3/8-inch or 2-3/4-inch backsets. Screw posts align automatically for easy installation. All F-Series locks meet 400,000 cycle ANSI Grade 2 requirements.