There are occasions when it is necessary to substitute the screws that are provided with electrical
boxes and it may be impractical to obtain replacement or substitute screws from the box manufacturer. Screws can be lost or damaged or longer screws may be needed during
renovations. When substituting the screws that are provided with an electrical box for cover
mounting or for mounting a luminaire support strap, it is critical to use a high quality machine screw of the appropriate size and 32 threads per inch. Never use drywall screws!
?I don't work at NEMA...lol..don't kill the messenger.
We have decided to tag the undersized ground wire at each end as 'undersized' and also tag the conduit to be clear it is the ground path as all other conduits in the bldg are not