Review on 📐 20x20 European Aluminum Extrusions with Slim T-Nut M5 Thread – Pack of 100 by TOPINSTOCK by Balthazar Cooper

First, and probably most important to many, is that they fit OpenBuilds V-groove profiles. They are nearly identical in shape to the male tees that Openbuilds sells/supplies and for about 10% the cost per nut. This prize is not without its own costs, however. There were a few small metal shavings in the bag that appear to have been left over from threading. When testing some nuts I noticed that about 20-30% of the nuts were difficult to tighten due to dirty threads and some pushed out bits of metal when unscrewed and then unscrewed more easily. A few of them were simply not fuelable at all and therefore unusable. I also noticed that the threads in some of them weren't quite straight. Это может быть проблемой, а может и не быть, в зависимости от того, что вы пытаетесь смонтировать, поскольку обычно все, что вы прикрепляете к профилю, имеет квадратную форму, будучи заподлицо с профилем, а гайка используется только для того, чтобы зажать его on site. So it can only be problematic in rare cases, but underlines the lack of quality control. All this as they say. Are they worth it? In my opinion, yes. Most poorly cut nuts will still thread normally, with just a little extra resistance at first. A pair that cannot be used could simply be considered disposable. The price is what makes them worth it. Equivalent push-in tees are typically $0.89 EACH of the open assemblies, meaning just 10 of these cost almost $9 plus $3 postage, so get this 100-pack (and maybe throw 1 or 2 way) cheaper than 10 of them you. Of course openbuild nuts are much higher quality but I'm not sure why they are so expensive (compared to their low profile bolts - decent price).