A method for producing a screening device, the method comprising the steps of providing a screening device that includes a plurality of profiled bars and a plurality of bar holder packages associated with the plurality of profiled bars. The plurality of bar holder packages include a plurality of first bar holders and at least one additional bar holder associated with the plurality of first bar holders. The method including the further steps of inserting the plurality of profiled bars parallel to one another into the plurality of bar holder packages, and bending the plurality of bar holder packages such that the plurality of first bar holders and the at least one additional bar holder are bent at the same time.