Schlage F51A AND 619 AND Andover Knob with Andover Trim Keyed Entry Lock, Satin Nickel Elevate the style of your entire home with keyed entry locks that coordinate with Schlage interior hardware Style updates are easy with guaranteed fit on standard pre-drilled doors and easy installation  all you need is a screwdriver Finish coordinates easily with other home accents like Lighting and Plumbing Fixtures Use a key from the outside or manually rotate the interior turn button to lock and unlock Lock and finish come with limited lifetime warranty and Schlages exceptional customer service team (see full warranty information for details) Keyed entry function unlocks when door is opened from the inside, allowing you to leave quickly, conveniently and re-enter easily Metal construction adds strength, security and durability Resistant to pick attacks ANSI/BHMA Grade 2 Certified