The most reasonably priced component used on the Gsx600f Katana 1996 (t) Usa (e03) Oil Cooler is the Washer(8.5x23x1.2).
With a quantity of four pieces, the Bolt is the most used part in the OIL COOLER diagram.
Parts such as the Oil Cooler: Bolt, Clamp(l:250), Gasket(16x22x2) (nas), Spacer (8.8x12x24.5) are included in the Gsx600f Katana 1996 (t) Usa (e03) Oil Cooler parts fiche.