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A bracket for mounting an electrical box on a wall stud including a sheet metal plate having front and rear faces and a large central opening therein. A pair of screw opening formations is provided in the plate generally adjacent diagonally opposite corners of the central opening in the plate. Each

A bracket for mounting an electrical box on a wall stud including a sheet metal plate having front and rear faces and a large central opening therein. A pair of screw opening formations is provided in the plate generally adjacent diagonally opposite corners of the central opening in the plate. Each formation includes a relatively narrow screw shank clearance slot which receives the shank of a respective box mounting screw. The plate is so configured that an electrical box may be moved to a first position in which the front of the box is closely adjacent the rear face of the plate, and then to a second position in which the shanks of the mounting screws are received in the screw shank clearance slots of respective screw opening formations and in which the front opening of the box is generally in register with the central opening in the plate. A locking device on the bracket prevents movement of the box from its second position back to its the first position for locking the box in its the second position and holding the box captive on the mounting bracket without the need to tighten the box mounting screws.

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A bracket for mounting large and small electrical boxes on a wall stud, each electrical box being of the type having side walls, a rear wall, a front opening, and a pair of box mounting screws projecting forward from the box generally adjacent diagonally opposite corners of the front opening of the

A bracket for mounting large and small electrical boxes on a wall stud, each electrical box being of the type having side walls, a rear wall, a front opening, and a pair of box mounting screws projecting forward from the box generally adjacent diagonally opposite corners of the front opening of the box, each screw having a screw head and a threaded shank, said bracket comprising: a sheet metal plate having front and rear faces and a large central opening therein having first and second pairs of diagonally opposite corners, a fastening flap extending from one side of the plate for securement to a wall stud to mount the bracket on the stud in a position wherein the plate extends laterally from the stud at one side of the stud and lies in a generally vertical plane, a first pair of screw opening formations in the plate generally adjacent said first pair of diagonally opposite corners of the central opening in the plate, a second pair of screw opening formations in the plate generally adjacent said second pair of diagonally opposite corners of the central opening in the plate, each formation of said first and second pairs of screw opening formations including first and second relatively narrow screw shank clearance slots each having a width sufficient to receive the shank of a respective box mounting screw but insufficient to permit passage therethrough of said screw head, at least one screw opening formation of each of said first and second pairs of screw opening formations further having a respective screw head clearance opening communicating with open ends of said first and second screw shank clearance slots of the screw opening formation, said first and second screw shank clearance slots extending from the screw head clearance opening generally at right angles relative to one another, the plate being so configured that a small electrical box is adapted to be moved to a first position in which the front of the box is closely adjacent the rear face of the plate and in which the heads of the box mounting screws on the box pass through respective screw head clearance openings and are disposed forward of the front face of the plate, the small box then being movable in a direction generally parallel to the plate from said first position to a second position in which the shanks of the screws are received in said first screw shank clearance slots of respective screw opening formations and in which the front opening of the box is generally in register with the central opening in the plate, the plate being further configured so that a large electrical box is adapted to be moved to a first position in which the front of the box is closely adjacent the rear face of the plate and in which the heads of the box mounting screws on the box pass through respective screw head clearance openings and are disposed forward of the front face of the plate, the large box then being movable in a direction generally parallel to the plate from said first position to a second position in which the shanks of the screws are received in said second screw shank clearance slots of respective screw opening formations and in which the front opening of the box is generally in register with the central opening in the plate, and at least one locking device formed as an integral part of the bracket located adjacent one of said at least one screw head clearance openings and movable relative to the bracket from a first position in which the locking device is positioned on the bracket for enabling said small or large box to be moved from its said first position to its said second position, to a second position in which the locking device is positioned on the bracket for preventing movement of the small or large box from its said second position back to its said first position thereby to lock the box in its said second position and to hold the box captive on the mounting bracket without the need to tighten the box mounting screws to bring the heads of the screws into clamping engagement with the front wall of the bracket.