A fastening device (100, 200) configured to fasten a windscreen wiper device on a fastening element (50) of a vehicle, in particular of a motor vehicle. The fastening device (100) comprises: a first receiving region (110), into which the fastening element (50) can be introduced; and a securing element (120) mounted rotatably about a first axis of rotation (122), wherein the first axis of rotation (122) extends substantially perpendicular to a longitudinal extent (51) of the fastening element (50), and wherein the securing element (120) is configured to form an engagement with the fastening element (50) through a first rotation (124) about the first axis of rotation (122).