National Hardware N262-170 V1319 Universal Knob Latch in Black Designed for wood or metal screen and storm doors 1-3/4 hole spacing Fits wood doors from 3/4" to 2" thick Interior locking mechanism provides for enhanced security Mounting screws included to match product finish Includes spring loaded strike plate Manufactured from zinc die-cast Smooth contours and ergonomic design Heavy-duty smooth operation Added security with interior blocking mechanism (only interior) Durable finish for a lifetime of use