The Air Cleaner (front) assembly is constructed from several parts from which the Cleaner Assembly,air is the most expensive.
On this parts fiche the Screw is the most specified component.
The most reasonably priced component used on the Vs750glf 1988 (j) (e04 E18 E22 E34 E75 E77) Air Cleaner (front) is the Lock Washer.