A device for securing cargo restraining apparatus on a wall of a cargo receptacle is comprised of a body member adapted for slidable engagement with an elongated track on the wall; an attachment member for attaching the body member to the cargo restraining apparatus; and first and second trigger members at respective opposed ends of the body member. The first and second trigger members are adapted to engage respective complementary portions of the track to inhibit sliding movement of the body member along the track when both of the first and second trigger members are engaged with the track, such that the body member is slidable only in one direction when the first trigger member is disengaged from the track and the second trigger member is engaged with the track and is slidable only in an opposite direction when the second trigger member is disengaged from the track and the first trigger member is engaged with the track. The first and second trigger members have respective beveled surfaces to facilitate disengagement of the first and second trigger members from the track.