M4 T-nut for 2020 alu profile

Another T nut for 20x20 Aluminium profile

I prefer M4 nut for 2020 profile, because the holding parts are metal (nut+alu profile), and not the plastic and metal like M3 solutions.

How to print?

I prefer print from PLA, but ABS will also work.
The sizes are correct for my extrusion, if they are too tight, apply some sanding to fit perfectly.

How to use?

Press a M4 nut into the printed part with a plyer.
Slide the t nut into the profile.
Screw tight.