Beefy Bucket Box

This is a little box that can be bolted onto the side of any 12" bucker such as the ones sold at home depot. I designed it for another project so that it could house electronics and it worked just fine. It is relatively small because of this so, later on, I might add a customizable one so that the size can be modified.
The original box has inside measurements of (LxWxH) (4.25x1.4x2.75) inches. (107.95x35.56x69.85) millimeters.
Bolt hole size is 0.25" (6.35mm).