PZRT Elastic Aluminum Extrusion Profile Review

Not a good price, you can get 50 pieces cheaper from China. I was in a hurry to finish the project, otherwise they would not have been ordered.

4040 sliding blocks are not deep enough, they just hang in the groove. They are not deep enough for the ball to reach the back of the T-slot and hold it in place.

These 3030 Series T-Nuts fit perfectly into the smaller slot of Ikea's Vidga curtain rails. I will be using these with M6 thumbscrews as a workaround instead of plastic inserts to connect to the wall mounts.

This is a great concept and I'm sure there is an extruded aluminum rail somewhere in the world that they fit perfectly in, but none of mine seem to hook the ball. It just rattles in the rail and falls off where you set it. They work just as well as a regular nut (except for the elastic/solid spring ball).

These 3030 Series T Nuts fit perfectly into the smaller opening of Ikea Vidga curtain tracks. I will be using these with M6 thumbscrews as a workaround instead of plastic inserts to connect to the wall mounts.

Let's be clear. These aren't the most expensive Spring T-Nuts, but you can certainly find them cheaper if you're willing to wait a long time for delivery. At around $1.30 each, they appear to be a well-made product and consistent quality across multiple orders.

That's a great idea and I'm sure there is an extruded aluminum bar somewhere in the world that they fit perfectly into, but none of mine seem to snag the reel. Ball. It just rattles in the track and falls off where you set it. They work just as well as a regular nut (except for the elastic/solid spring ball).