On this parts fiche the Bolt-flanged-small is the most specified component.
Parts such as the Breather Cover/oil Pan: Bolt-flanged-small, Bolt-flanged-small, Body-breather, Plate,breather are included in the Zg1000a12 1000gtr 1997 United Kingdom Fr Nl Fg St Breather Cover/oil Pan parts fiche.
The most reasonably priced component used on the Zg1000a12 1000gtr 1997 United Kingdom Fr Nl Fg St Breather Cover/oil Pan is the Gasket,drain Plug Bol (nas).