The most expensive part in this assembly is the Cock Assembly,fuel.
The Screw is the cheapest item from this partsfiche.
With all the components that make up the GSF600 1999 (X) (E02 E04 E17 E18 E22 E25 E34) / P37 FUEL COCK assembly. The Bolt(6x20) is the most frequently specified with two applications.