The Baldwin Traditional Round Deadbolt offers secure performance wrapped in timeless simplicity. Its classic circular shape pairs effortlessly with a variety of door styles, making it a versatile choice for traditional homes. Built from premium materials, it delivers both reliability and understated elegance. Features The combination of Reserve style and the security of a keyed cylinder, all within the 2 1/8" standard door preparation. Locking mechanism functions with turn piece on the interior of the lock Includes a 2 3/8" and 2 3/4" adjustable backset latch and Dual Strike. Door Preparation: 2-1/8” Cross Bore. 1” edge bore for latch Latch Bolt: Deadbolt features 1” throw Brass bolt latch Door Thickness: 1 3/4"-2" standard. Up to 2-1/2" thick doors optional through Thick Door Service Part Kit. 1 3/8" to 1 3/4" doors available through Thin Door Service Part Kit. Complete deadbolt set includes everything needed to install the lock onto your door. Includes 6 Way Adjustable Front & Latch options: Round corner, Square corner and Drive in collar 2 Keys Included with deadbolt Tested to exceed ANSI/BHMA Grade 2 security Note: Interior roses have exposed fasteners Specifications Diameter: 2 5/8" Exterior Projection: 3/4" Single Cylinder Interior Projection: 1 7/16" Double Cylinder Interior Projection: 3/4"