| 摘要 |
A universal type of electrical work box is mountable to studs for new work, or for old work whether stud-mounted or not. For mounting to studs, fastener blocks guide fasteners at an angle from the interior of the box. Alternatively, slide-in fastener plates which have integral fastener blocks can be used Optional recessed break-away flanges are provided to properly space the open end of the box from the front of a stud for new work use Flanges mounted flush with the open face of the box are used for old work whether stud mounted or not. When a box is to be mounted on wallboard or any wall covering away from a stud, rotating wings rotate 90 degrees away from the box wall and sandwich the wallboard between the tightened wings and the flush flanges are used. |
