50pcs M3 Slide in T Nut Tee Sliding Nut for 2020 Sereis Aluminum Extrusion Profile Slot 6mm

These T nuts fit perfectly in 2020 profile and lock in tight with M5 bolts. They don't have any sort of retaining ball or spring but they work very well once you get them tightened down. Material seems to be good quality and I've been able to make some very strong structural pieces with 2020 profile and some aluminum gusseted brackets and these T nuts.

I bought the wrong size of these. These are for the 20x20 extrusions not the surface table (3018 pro). They do fit the 20x20 channels and hold extremely well. I just wish I had bought the ones for the surface table. I’m not complaining though because now I have spares if I need them.

Very good quality and they slide in 20 series extrusions without turning like the ones that came with my new CNC Router. (I am using them instead of the ones that came with it.) I just ordered a second set.

These work exactly like they're supposed to. I haven't had any issues with inconsistent threading or bad casting, so I would likely buy these again if I had a need.

Very good fit and finish. Precisely fit the openbuilds extrusions

ok

They fit great for the 2020 stock I have, but as always, check your dimensions.

Fits well, good finish.

Good quality, works as advertised.

Item as described. Works well.

Just have to pre-plan the assembly to get these into the groove ahead of time.