Comment by jstrieb

If you're not familiar with McMaster-Carr, this Hackaday article is a good introduction: https://hackaday.com/2017/09/13/noobs-guide-to-mcmaster-carr...

Besides the handy website, their many-thousand page phsyical catalog is great. We have a copy at work and it's easy to spend a long time flipping through, learning about all of the different things they have, and why they are useful.

Here is Adam Savage talking about why their catalog is awesome: https://youtu.be/8kbu34dk92s