Abstract: An electrical outlet box which includes side walls and a back wall and has an opening opposite the back wall. Screw-receiving retainer lugs are provided on the side walls to facilitate attachment of a cover plate to the box, and a plurality of conductor windows are provided in the box at the intersection of the back wall with one or more side walls. A flexible, resilient arcuate locking tongue carries locking teeth on a convex, outwardly facing side of the tongue for locking, tangential contact with an electrical conductor extended through the respective conductor window and against the locking tongue while the locking tongue is in a deflected status. Cusps having arcuate ramp surfaces are formed on the back wall to guide conductors inserted into the box through the windows into the interior of the box.

Abstract: An electrical outlet box mounting bracket assembly including a box of generally rectangular parallelepiped configuration, a pair of spaced channel elements on a side of the box, and an L-shaped bracket including a flange having side edges extending into the channels to engage the bracket with the box. The bracket further includes a pair of flexible tongues adjacent the side edges of the flange, which tongues engage tabs at the ends of the channels.