Aluminatus Corner Clamps With Height Adjuster & 1mm taller clamps

This is a remix of GKbeers bed corners and clamps.
I added two holes so you can add a 5mm x .8 pitch adjuster bolt on the outer corner or on the inside. My heater plate is a bit smaller than my glass, so I chose to use the inside hole. This adjuster bolt will require you to drill a hole at each corner. The hole size in the corner is such that the bolt can thread in tightly and require no further hardware to stay snug.

The F-300 parts are the fixed pieces that get attached and tightened on t