Abstract: A locking assembly for a sliding door or window including an angle member disposed with one flange section in a horizontal position normally and a second flange section extending downwardly therefrom in a vertical plane, a pair of rigid elongated bars connected to the second flange section below the first flange section with at least one being pivotally connected, the elongated bars being disposed normally in a horizontal position aligned longitudinally of each other with their adjacent ends spaced horizontally along the second flange section, mounting brackets pivotally attached to the free ends of the elongated bars, and means positionable between the angle member and the pivotally connected elongated bar selectively to prevent the elongated bars from being oriented in a longitudinally aligned locked position.