I kept picking button-head screws for the low profile and then stripped two in a row. So I wrote up how I choose SHCS or BHCS.

SHCS: more torque, deeper hex, better for repeat service.
BHCS: low height, smoother edges, fine when loads are light.

Full notes: the-playground.net/Fabrication+...

I've recently built some furniture using aluminum extrusion profiles. This construction technique required me to learn how to tap the extrusions. Here's a summary of my learnings:

I needed a shelf that sits inside 2020 extrusion. Solution: the-playground.net/Projects/202...

I began a micro-retirement in November 2024 to reset and refocus. I learned 3D printing and tuned my wood shop. I am documenting my projects on my site.
the-playground.net