Contact-making unit, attachment method and screwing tool for carrying out the method

摘要

The invention relates to a premounted contact-making unit (10) having a screw (12) which has a head (16) and a shank (18), and a holding unit (14), wherein the holding unit (14) has a connection part-holding section (28) into which at least one connection part (40) can be inserted, and a screw-holding section (26) into which the screw (12) is inserted in the longitudinal direction (22) in such a way that the screw (12) is held therein captively in the longitudinal direction (22) but in a rotatable fashion, and in that a connection part (40) which is inserted into the connection part-holding section (28) can make electrical contact with the inserted screw (12), wherein a radially protruding bearing section (70) is formed on the head (16), and the screw-holding section (26) has a shoulder section (72) by means of which the bearing section (70) is supported axially on the holding unit (14).