About this 3D model
I found that the aubenc's MakerBolt was a great fiddly toy for everyone I gave one to. A common complaint was that the nut didn't spin enough before it reached a physical limit of the bolt. So, I gave it a few more threads. I also gave the MakerBolt and Nut hex wrench compatibility, and enlarged the entire nut/bolt set so that it will fit a 1" wrench. (Update) Added the nut and bolt separately. (Update) Fixed the scale on the individual nut & bolt. (Update) Fixed all known geometry issues. Should slice properly now.