Self-grounded plastic electrical box and method of making the same

The present invention relates to electrical boxes and methods of producing the same. An electrical junction box or mounting assembly includes a box having a top wall and a side wall. The side wall extends downwardly away from the top wall and defines a cavity therein. A hole is provided in the side wall, and a fixture support is disposed in the hole. The fixture support may be made of metal, and the side wall and/or top wall may be made of plastic. The fastener may be a stud having a threaded hole therein. Flutes may be provided on the stud for engaging with the plastic/metal side wall for preventing rotation of the stud. An adhesive sufficiently strong to adhere the junction box to a downwardly facing surface may be provided on the top wall of the junction box. The adhesive may be in the form of double-sided tape. A method of extruding junction boxes includes extruding at least the side wall of the box and attaching a top wall thereto.