For In-Swinging Storm & Screen Doors ONLY – Designed exclusively for doors that open inward. Not compatible with out-swinging doors. Dimensions: Sized for doors 7/8” to 1 1/2” thick, with a standardized screw hole spacing of 1 ¾", the IS handle should securely fit most in swing doors Compatibility: The IS handle is only for in swing storm and screen doors, and cannot be used to replace out-swinging door handles Locking Latch: The inside handle features a locking mechanism that locks the outside handle, adding a layer of safety and security to your in swing door Versatile Installation: The IS in swing handle can be installed on either left inswinging or right inswinging storm or screen doors