Gravity Screw

grabcad

This screw was designed to test the smallest thread size possible using my 3D Printer. It's not only fun to play with but also spins effortlessly due to its single 3D-printed construction. My friend Deelip nicknamed it a "Gravity screw" and even made a video about it. In response, I created a keychain version with a hole on top for easy attachment of a key ring; however, if you print at half the scale, the key ring can be directly attached to the miniature screw.