The 7KC is a cylindrical lock manufactured by BEST. It has a cylindrical chassis to suit basic door preparation with standard and drive-in latches accessible. It increases torque resistance through bolt mounting studs. This lock has a hub torque spring that gives an extra resistance to lever sag with flexible trims and finishes that are accessible. The lockset is reversible for either hand of door without eliminating the keyed lever. Its internal steel mechanism are corrosion treated for normal atmospheric situations. This 7KC cylindrical lock is listed in BHMA directory of certified locks and latches as conforming to ANSI A156.3, Grade 2. This also features a fast rekeying BEST interchangeable core.