Summary

2x2 Gridfinity bin for these little screw jacks. They are the 23-30mm size (which actually go to 36mm), they show a different size on amazon:
https://www.amazon.com/dp/B0759YSFQ5?ref=fed_asin_title&th=1

This is a single color print, ignore the color around the top edge. I add them to my gridfinity bins using a modifier in the slicer software.