This Cowling Brace (gsf600st/sut/sv/suv/sw/suw) diagram displays the required parts for the Gsf600su 1998 (w) Germany (e22) Cowling Brace (gsf600st/sut/sv/suv/sw/suw).
In this schematic the "Bolt" is used most often.
The most reasonably priced component used on the Gsf600su 1998 (w) Germany (e22) Cowling Brace (gsf600st/sut/sv/suv/sw/suw) is the Bolt(6x25).