Abstract: A device which can be used in dentistry operates with two different screwing functions. The functions can be performed with the aid of at least three different types of screwing tools. With a first screwing function, first and second components are held together, and, with the second screwing function, the held-together components are screwed, for example, into the jaw bone in which one component is to be anchored. The first function operates with a Unigrip function, whose screw head is situated inside the first component. The second function operates with an internal Stargrip function and an external hexagon function on the first component. The screw of the first function, with its associated screw head, can be applied insider the first component via a portion forming the Stargrip function.