Weslock L0640KNKNSL23 Left Hand Calais Entry Lock with Adjustable Latch and Full Lip Strike Satin Nickel Finish

Keyed Entry (Single Cylinder) Function: Weslock's keyed entry (single cylinder) door lever sets are keyed on the exterior with an associated thumb turn on the inside that can quickly and easily lock or unlock the latch mechanism. Single cylinder units are commonly used on a front, side or back entrance but can also be found on interior doors as well, depending on application.About Westlock: If security, safety, and style are important to you, then Weslock is your choice for quality hardware for your home. Weslock hardware is well built, and designed to last through years of use.