The plunger is a piece that is manufactured with Zamak due to its residence similar to steel and two finishes are generated, one in natural zamak and the other zinc plated. This piece has the function of locking a bolt of the System Ø14 hooks, keeping it fixed, allowing the joints of two pieces in a hidden way. The height from the center of the hole to the top of the part is 7mm and 12mm in total height. Its diameter is 14 mm and it is designed for a board thickness of the same dimension. Finally, its packaging is in 1000 units.