nut with visible thread from bolt
grabcad
you can find this tutorial here http://grabcad.com/questions/how-to-model-nut-with-visible-threads-from-an-existing-bolt
Download Model from grabcad
With this file you will be able to print nut with visible thread from bolt with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on nut with visible thread from bolt.