Hold Down Knob

This is a spring loaded hold down knob that I made for a portable power supply mounting system. It is my first attempt at making an indent type spring loaded knob. I thought it might be one of those things that inspires other ideas for people since I always get inspiration from other peoples posts.
It uses #8 sheet metal hold down screws and M6x1.0 30mm socket head with a small spring. The knob part will need support. Also important is a dab of silicone grease, it will not work smoothly without this. Silicone grease seams to work well for any PLA moving parts that I have made.
If there is interest I can post the A360 file and details of how the indents are drawn in Fusion 360.