Designed for wood or metal screen and storm doors 1-1/2 in hole spacing. Fits wood doors from 5/8 to 2 in thick. Note, for 2 in thick doors, pan machine screws 8/32 in x 2-3/8 in are required and must be purchased separately (qty 2). Interior locking mechanism provides for enhanced security. Mounting screws included to match product finish. Includes spring loaded strike plate. Manufactured from zinc die-cast.