Screw-cover Type 1 pull boxes with knockouts. Unique keyhole screw slots in the cover. Available with or without knockouts. Various sizes of easy-to remove concentric knockouts on all four sides of standard boxes with knockouts. 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. ANSI 61 gray polyester powder paint finish inside and out. Unless otherwise specified, all custom pull boxes are finished with ANSI 61 gray polyester powder paint. Use this enclosure in commercial and general industrial applications that require a junction or pull box. For flush installations, order flush covers and door frames separately.