The most reasonably priced component used on the Vt1100c2 Shadow 1999 (x) European Direct Sales / Kph Handle Pipe/top Bridge is the Washer,plain, 6mm.
This HANDLE PIPE/TOP BRIDGE assembly utilises six Cap,soc.bolt 8mm(s) - the highest specified component.
Some items from this specific schematic: Holder,hndl.upp, Washer, Stem, Nut,flange 8mm, Cap,soc.bolt 8mm.