M8 Thread T Spring Nut, Mergorun Silver European Standard 40 Series Aluminum Slot Carbon Steel Half Round Roll in Spring T Slot Nut with M8 Thread Pack of 30

These come in pretty handy when your 80/20 framing is already built and you want/need to add something. Eliminates the need to have to access an open end of an 80/20 piece. They seem solid and well made.

Works Perfect, Using 40-40 aluminum

Great Nuts for used in 80/20 Extrusion

A quality supply of a particular product that has limited application but works so well in those situations.

Seems like a good value. They slide in nicely and stay in place due to the ball bearing. I bought a second batch.

High-quality Stainless Steel with a spring ball to secure the nut in the channel

Was exactly as described.

Width is too small for the standard extrusions