The union system for 10 mm hole nuts is made of plastic, which guarantees a piece of high resistance, strength, and durability. Also, its finish is transparent. On the outside, it has a grooved edge that serves to generate a greater grip on the board. It is easily installed, for this requires a drill in the board of the indicated size, to then embed the piece in it. Its function is to provide greater support for the nuts of the panel joint system, giving greater security. Finally, they can be purchased in batches of 5000 units.