Prime-Line U 9887 Flip Action Door Lock &ndash; Reversible Brass Privacy Lock with Anti-Lock Out Screw for Child Safe Mode, 2-3/4&rdquo; STEEL PRIVACY LOCK  Add an additional privacy lock to your interior doors with this flip action door lock. The hinged portion of the lock flips over the door to lock. REVERSIBLE DOOR LOCK  This reversible door lock can be used on right or left-handed swing-in doors. CHILD SAFE MODE  An anti-lock out screw is included for child safe mode, preventing the lock from engaging on its own. This lock should be installed high on the door. EASY INSTALLATION  Installation is quick and easy, and the flip action door lock fastens to the door jamb with two screws. Surface mount, no mortising required. DURABLE, STRONG CONSTRUCTION  Made of brass, this door lock is strong and durable, sure to last the test of time.