An appliance mounting assembly includes a mounting bracket with first and second distal arms that flare outward in opposing directions from an attachment body and couple to a panel. The mounting bracket includes a pair of coupling members that extend from the attachment body toward the panel surface and distal ends that curve inward toward one another. A self-clinching nut has an undercut, serrated clinching ring, and base. The undercut and the serrated clinching ring are disposed within an aperture defined by the attachment body. A ladder rack has first and second sides coupled via an attachment wall. The first and second sides define protrusions that engage the pair of coupling members in an interference fit. The attachment wall defines a receiving hole that aligns with the aperture. A threaded fastener extends through the receiving hole and engages the self-clinching nut to fasten the ladder rack to the mounting bracket.