Abstract: Disclosed is a door security kit comprising (1) a metallic cuboid compartment, (2) a door guard assembly, and (3) an ASA/ANSI modified strike plate, the modified strike plate constructed with a top notch, a bottom notch, and an elongated lip. The metallic compartment further manifests a rear planar panel, having an adjustable channel cutout. A mortise cylinder mounted externally to one surface of the compartment connects to a tailpiece at one end with a keyway extending therethrough. Rotation of the keyway operates the tailpiece and a connected rod, the rod moving metallic plates to control the size of the adjustable channel. Decreasing the length of the adjustable channel causes the channel to clamp onto the notches of the strike plate, preventing movement of the door bolt from its insertion within the modified strike plate. The door, and the strike plate, are both housed and operate within a doorjamb.

Abstract: Disclosed is a door security kit comprising (1) a metallic cuboid compartment, (2) a door guard assembly, and (3) an ASA/ANSI modified strike plate, the modified strike plate constructed with a top notch, a bottom notch, and an elongated lip. The metallic compartment further manifests a rear planar panel, having an adjustable channel cutout. A mortise cylinder mounted externally to one surface of the compartment connects to a tailpiece at one end with a keyway extending therethrough. Rotation of the keyway operates the tailpiece and a connected rod, the rod moving metallic plates to control the size of the adjustable channel. Decreasing the length of the adjustable channel causes the channel to clamp onto the notches of the strike plate, preventing movement of the door bolt from its insertion within the modified strike plate. The door, and the strike plate, are both housed and operate within a doorjamb.