HOFFMAN ASE4X4X3NK Box w/o knockouts steel grey NEMA1 4x4x3in

Pull box without knockouts. Unique keyhole screw slots in the cover. Optional flush-mounted door frame available. Optional flush covers. Flat, removable covers fastened with plated steel screws. Provision for grounding. Mounting holes on back of box. 16, 14 or 12 gauge steel or plated steel. ANSI 61 grey polyester powder paint finish inside and out. Used in commercial and general industrial applications that require a junction or pull box. For flush installations, order flush covers and door frames separately.