Perfect for applications where exterior unlocking is not desired, this deadbolt is locked/unlocked with a thumbturn from the interior side only, an exterior plate covers the outside exposed prep. This deadbolt is backed by over a century of dedication to durability, strength and craftsmanship from Schlage. Built with premium materials and certified to the highest industry standards, you can have peace of mind that this deadbolt helps protect what matters most. Trust your home to Schlage.