Thumb Screw
thingiverse
Mount a secure attachment of a concentric fastening device by installing a back-mounted thumbscrew on the brackets.
Download Model from thingiverse
With this file you will be able to print Thumb Screw 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 Thumb Screw.