A concealed 180° hinge for the movable connection of two parts between a collapsed state and a fully opened-out state of the parts has at least two U-shaped pivoting brackets. The hinge, which has the highest possible strength and also allows the two parts to be moved in relation to one another without any risk of collision, includes rotary pins of the two pivoting brackets on the one hinge part that are arranged in a plane substantially parallel to the plane of the part, which can be connected to this one hinge part. The rotary pins of the two pivoting brackets on the second hinge part are disposed in a plane located substantially perpendicularly to the plane of the part, which can be connected to this second hinge part.