M3 T Slot Nut for 5mm Slot

thingiverse

LIKE IF YOU LIKE! I was not able to find cheap t-nuts for McMaster Carr 20mm x 20mm aluminum extrusion. The extrusion has a 5mm slot and this is designed for that. You can buy 100 M3 nuts on McMaster for $0.88 USD https://www.mcmaster.com/90592A085/ and print 100 of these for a fraction of the cost of normal T-Nuts, plus these actually work! Just print it on it's side with no supports and then press in a M3 nut with your fingers. No post processing of the part is needed.