Machine Screw Reference

I wanted a way to check the thread of weird bolts and threaded holes in my junk drawer so instead of buying calipers I am over-engineering this solution by literally making threaded dummy screws.

I will add the other common screw sizes but if you want to do it yourself I added the files to do it in freecad.

Screw size is etched into the bottom.

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Update: after 24 hours I decided my original design is dumb and I made a new one with a key ring spot.