A simple screw I made from scratch (loosely) following this tutorial: https://www.youtube.com/watch?v=jXcB-6dYrXc. Materials made in Cycles.
The one standing up is the original, the two others are linked duplicates (clones).
It's one of my first finished models and I'm still learning a lot, but I think it should be usable. Feel free to comment.
Realistica`