This flange, a knob holder from JAG, mounts on the header of a grain harvester to secure the control knob for the header's operating mechanism. It attaches to the machine's frame using two mounting holes, providing a fixed anchor point for the linkage that controls header functions. A worn or damaged flange can introduce play in the control linkage, leading to imprecise header adjustments during operation. The part is manufactured to match the original geometry, ensuring the knob sits at the correct height and angle for consistent operator input.