The Bolt, Flange (4h7) is the cheapest item from this partsfiche.
Parts such as the Frame - Fuel Tank: Nut, Flange(38w), Fuel Level Gauge Assy, Grommet(2gh), Washer, Plate(481) are included in the Yg300s 7mb1 Generator Frame - Fuel Tank parts fiche.
Check out any of the thirty-one Frame - Fuel Tank components enlisted.