A modular plate assembly for hanging articles on a wall, comprising at least one and preferably a number of releasably interconnected plates, to be screwed on a wall, and at least one hook bracket, to be secured to the plates while concurrently hiding the head of the screw. The plates are endwisely interconnected in pairs by a tenon and mortise joint, including short hollow studs from one end section of one plate to frictionally engage large bores in one section of another plate. The screws engage through the hollow of the studs, to be driven into the wall. The hook bracket has a cavity provided with a railing, and each end of the plates has a tab whereby two proximate tabs from two adjacent plates are designed to be frictionally releasable engaged through the cavity of the hook bracket, to retain same in position for supporting the load of said article.