The X71 euro nickel-plated supplement to screw is a very necessary piece to carry out the installation of the hinges that work with this type of regulation. It has eccentric regulation. It is a piece made of steel and covered with a nickel-plated finish. It is compatible with spacers and wedges It is useful for clip or automatic mounting of the hinge to the supplement. Each package contains a total of 200 units that, due to their size, must be kept out of the reach of small children and classified separately during installation to avoid loss. They are designed with simple operation and can be installed by anyone with ease.