!!!WARNING!!!
Only use ABS 3D printed nuts on light fixtures that use cool LEDs since ABS can melt from the heat of standard incandescent light bulbs.
Had a metal nut break on a bathroom light fixture and there was not a replacement part available. Designed the nut and it fits perfectly on the light bulb housing to keep the glass light shade in place. I printed this part in ABS to ensure heat and functional durability.