Sometimes there is a need to order an unpainted box.
When searching there are two ways you can search for it.
If you start in the “Box” section.
There is a filter called “color”. In that filter would be an “unpainted” option.
Alternatively, when you are on the main Digi-key web-page you can search “unpainted box” then you would click on the box category to get the results list.
Click here to view the options I had found for unpainted boxes.