Ever wondered how to shorten a screw? My tip is easy and straight forward and does not involve a saw.
If you need to shorten a screw, using a “widget” will do the trick.
We were fitting a door to a kitchen cabinet. The self-tapered screws we had were too long and would have cut through the wood. So, we used a widget to shorten the screw.
I took a box of rubber grommets, cut a small piece and rotate it up a screw. Then, the screw could be used as normal.