UNI earthing terminal for integrating system components into the functional equipotential bonding, lightning protection equipotential bonding or functional earthing. NIRO version, with hammer head screw M10 (38/17) and locking nut. The contact plate (intermediate element) made of NIRO allows different conductor materials (Cu, Al, St/tZn and NIRO) to be connected to the usual mounting systems, e.g. made of aluminum, without contact corrosion occurring. The double-crossover version allows the profiles to be connected to one another quickly and easily, e.g. with through-wiring.