A windscreen wiper device, particularly for automobiles, comprising an elastic, elongated carrier element, as well as an elongated wiper blade (7) of a flexible material, which can be placed in abutment with a windscreen to be wiped, which wiper blade (7) is of the flat blade type and includes at least one groove (19), in which groove (19) a longitudinal strip (20) of the carrier element is disposed, and wherein said windscreen wiper device comprises a connecting device (1) for detachably connecting said wiper blade (7) to an oscillating arm near one end thereof around a pivot axis, wherein said connecting device (1) is fixated to said flexible material of said wiper blade (7) by deformation of said connecting device (1) in order to block any lateral movement between said longitudinal strip (20) and said wiper blade (7) at the location of their interconnection and between said connecting device (1) and said wiper blade (7) at the location of their interconnection.