Product details:

Keyless Entry Function: This electronic deadbolt allows you to lock and unlock the deadbolt without the use of a key. It has the versatility of keyless operation while still retaining the functionality of keyed entry, having both a keypad and lock cylinder on the outside and a thumbturn on the interior. It's perfect for front doors, side or back doors, and garage entry doors. Dimensions of 2-1/4'' x 1-5/8'' Specifications: Backset: Adjustable to 2-3/8'' or 2-3/4'' Cross Bore: 2-1/8'' Edge Bore: 1'' Door Thickness: 1-3/8'' , 1-1/2'' , 1-5/8'' or 1-3/4'' Handing: Left, Right, Reversible Height: 5-1/2'' Product Weight: 1.50 lbs Projection: 2-1/4''.