This is a model for printing table top button for attaching a table top while allowing for wood movement.  Lip is ¼ inch (6.4 mm) thick, 3/4 inch deep (19.1 mm), total height is 3/4 inch, width 1 5/16 (32.9mm).  Hole is for #6 (M4) screw.  I printed with 40% infil, but that was just a guess that worked fine.  Used PETG, but curious how it works in other materials.