Abstract: A door lock assembly includes an elongated latch bolt having an enlarged front end portion and a cylindrical rear end portion which is formed with axially spaced and aligned first and second protrusions that cooperatively define a rear engaging groove therebetween. The first protrusion and the front end portion cooperatively define a front engaging groove therebetween. A movable member has a vertical end plate transverse to the bolt and formed therethrough with an engaging through-hole through which the rear end portion of the bolt extends fittingly and rotatably. The end plate has an annular inner wall which defines the through-hole and which is formed with a radially extending notch that is sized to permit extension of the protrusions therethrough. The inner wall of the end plate is engaged selectively within one of the engaging grooves in a manner such that the notch is deflected from the protrusions of the bolt, so as to prevent axial movement of the movable member relative to the bolt.