The Screw is the lowest priced item on this Speedometer (model K5/k6/k7/k8) schematic.
The thirty-three Vz800 Boulevard M50 2009 (k9) Usa California (e03 E33) Speedometer (model K5/k6/k7/k8) component parts are all listed in this schematic.
With six applications this Screw(3x16) is the most specified part.