This schematic depicts all components used in the Dr250s 1986 (g) (e01 E04 E15 E18 E21 E22 E24 E39) Right Handle Switch (model F/g/h) partslist.
A sample from the products for the Right Handle Switch (model F/g/h) include: Grip,throttle, Case Assy,throttle, Lever,brake, Adjuster.
With two applications this Screw 5x20 is the most specified part.