Patented adjustable bottom thru-bolt moves up or down 1-1/2-Inch to fit a variety of pre-existing holes * 1-Inch latch/bolt on deadbolt and strike/door frame reinforcer with 3-Inch screws offer maximum kick-in resistance * Latch components adjustable for 2-3/8-Inch or 2-3/4-Inch door preps * Concealed screws on interior * Fits on Right hand or Left hand door swing