Wiper arm and windscreen wiper device, in particular for a vehicle

A windshield wiper device and a wiper arm, in particular for a motor vehicle, is presented, which has a fastening part (22) that can be articulated by means of a first crank (18) and a second crank (28) at two points, for example to a windshield wiper device (10), characterized in that the fastening part (22) consists at least of a first plate (32) and a second plate (42) arranged substantially parallel thereto and at least one of the cranks (18, 28) is rotatably fastened between the plates (32, 42).