Allied Moulded SB=CB Sb-Cb Ceiling Box, 4 Inch By 2-3/4 in D, 2 -Knockout, Polycarbonate, Beige/Tan

Key Features

• Machine tapped fixture holes, adjustable mounting plate for additional substrate thickness
• Slots retain slider plate and guide it in a straight motion
• Internal rails guide slider plate for smooth mounting adjustability in wall substrates from 1/2 to 1-3/8 in thick and ceiling substrates from 1/2 to 1-5/32 in
• Square corner design allows easy wall cut-in
• Molded spline device holes for quick device screw installation in wall boxes and machine tapped threads for ceiling fixture support in round ceiling boxes
• Slider plate holds screws in ready position to enable contractor to mount boxes faster
• Fan support product has steel bracket and mounting bolts for secure paddle fan mounting
• Heavy-duty non-slip pad to ensure box and slider assembly solidly hold mounted position

Ceiling boxes non-metallic - adjustable with speed klamps Molded of engineering grade non-metallic thermoplastic. Adjustable, no need to remove or relocate mounting screws to re-position the box. Slots retain slider plate and guide it in a straight motion. Internal rails guide slider plate for smooth mounting ad justability. 4 inches diameter x 2- 3/4 inches width, 25 cubic inch volume, two 1/2 inches knockouts. Internal steel, stud/wood screws. Fixture rating 50 pounds. UL Listed for 2 hour fire resistive walls and ceilings.