Permissible controller cover resistant to fastener breakage

An assembly including a structural member that supports a load, said structural member having a rectangular opening therein to a cavity within said structural member that is adapted to house electrical components therein, said structural member opening being defined by a perimeter surface, and a plurality of opening screw holes in said structural member and spaced apart completely around and outside of said opening,

• a cover for said opening, said cover including a plate with an area larger than said opening, said plate having a first surface and an opposite second surface,
• a lip attached to and protruding from said second surface, said lip extending over and around and enclosing an area of said second surface and defining a protrusion that, when said cover is laid over said opening, fits closely within said opening, said protrusion having a surface that lies adjacent and parallel to the entirety of said perimeter surface, and
• a plurality of plate screw holes, in said plate and spaced apart completely around and outside of said opening when said cover is laid over said opening, and
• a plurality of screws, each screw having a head, with each screw received in a respective one of said plate screw holes and received in a respective one of said member screw holes so that the head of said screw is on the first surface of said plate.