On this parts fiche the Screw,pan,5x25 is the most specified component.
This L/h Handle Switch - Cable diagram displays the required parts for the Cb350k4 Italy L/h Handle Switch - Cable.
A sample from the products for the L/h Handle Switch - Cable include: Rubber,l Grip, Screw,pan,5x25, Nut,hex 6mm, Knob,winker Swit.