Strap Button
thingiverse
Simple strap button, might not hold up over time. I'll have to check the diameter but it was designed to be used with wood screws I had on hand.
Download Model from thingiverse
With this file you will be able to print Strap Button 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 Strap Button.