Abstract: Interlocking systems that mechanically secure tile panels to a supporting structure are enabled. For example, a panel mounting apparatus can comprise: a panel material comprising a first side and a second side, opposite the first side, a substrate material attached to the second side of the panel material, a fastening track attached to the second side of the panel material, adjacent to the substrate material, a mounting clip attached to the fastening track on a first side of the mounting clip, wherein the mounting clip comprises a projection from a second side of the mounting clip, opposite the first side, and a receiving body comprising locking channel that receives the projection, wherein an internal shape of the locking channel compliments an internal shape of the projection.