A display device includes a display panel; a back cover having a front side facing the display panel and a rear side opposite the front side, the back cover having a back cover cavity open on at least the rear side of the back cover; a nut coupled to the back cover, a lower body of the nut disposed in the back cover cavity, a stopper of the nut protruding along the rear side of the back cover and in contact with the rear side of the back cover, the nut having a fastening cavity; and a screw comprising an engaging portion and a head, the engaging portion held in the fastening cavity of the nut, the screw securing a printed circuit board between the head of the screw and the back cover.