Left hand Access by combination or outside key bypass. Egress by interior lever Accepts Schlage removeable core (core not furnished) Core and control key ordered sperately Recommended for high traffic security sensitive applications and where accessibility for the physically challenged is specified One hand operation: Depress correct combination of buttons & pushing down on lever retracts latch The all-metal 1000 Series is U.L. Listed for A label doors 1/2" deadlocking solid brass latch. Locks automatically when the door is closed unless the optional passage feature is activated to allow free access Easy installation: New inside trim plate adds to the ease of installation and aesthetic appeal Thousands of changeable combinations Allows free egress at all times Key override models are available No electrical wiring Door Thickness: 1-3/8" to 2-1/4" thick Deadlocking Latch: 1/2" throw Backset: 2-3/4" Lock Body: 7-3/8" H x 3-1/8" W x 3-13/16" D Latch Front: 1-1/8" x 2-1/4" Cross Bore: 2-1/8" Finish: 26D (Dull Chrome)