🔧 Enhance Assembly Efficiency with KOOTANS 50pcs 2020 Series M3 Half Round Roll in Spring T Slot Nut for 20x20mm t-Slot Aluminum Profile Review

Most of them are fine but some of them were inaccurate. Either too flat and free-floating in profile, or the fin wasn't cut clean enough to not quite fit the profile, or it was too thick, or the ball spring was missing, etc. Still probably the best option on the Revain that I've found have.

Not suitable for LDO rails. I have other t-nuts that fit LDO rails and while LDO rails are firmer and are strongly discouraged as they won't accept m3 cage nuts, my other m5 cage nuts work but they won't so will I blame her this time. but actually they are LDO extrusions. So if you have Misumi extrusions, you might be fine.

The first pack 6 months ago fitted well. 2 packs bought a week ago do not fit the same profiles. I don't recommend them as something has changed in the product and they don't fit my Misumi rails like the first pack (bought them from the same store a few months ago). seller - same part number). I tried 5 of each pack and each of them was able to shrink but didn't remove the extrusion when rotated to fix them - very disappointing!

At first I thought they were overly oiled on arrival but after washing it was clear they were almost all rusted. Some thrust bearings fell out of the nut, many are corroded.

While they will fit some T-slot profiles advertised as 20 Series, there is more than one 'standard' set of metrics. T-slot extrusion sizes and these nuts are too small at 1mm for the spring balls to secure the nuts in my extrusions.

The seller contacted me and quickly sent me a replacement. T nuts are perfect for my needs. The shipping packaging was ok but the t-nut bag had a hole in the bottom and the package only had 19 t-nuts instead of 50. This must have happened before the nuts were shipped in packaging because again no holes or damage to the shipping envelope.