Uxcell Threaded Aluminum Extrusions Profile Hardware Review

As some previous reviewers have said, don't expect a full usable batch. Some of them were too big to fit on the track. Possibly poor manufacturing tolerances or too much plating. Other problems were that the themes were difficult to start with. You can work around this by threading the screw through the opposite side a few times.

This is poor quality, at least the batch I received. Six out of fifteen are useless. At least half of the others had to turn the screw several times to free the threads. The threads are a bit mixed up in size, I can't tighten the screw and one has the bevel cut on an angle. I will probably have to send them back although I will need them soon.