This schematic depicts all components used in the Gsxr750 1990 (l) (e01 E02 E04 E15 16 17 18 21 22 24 25 34 39 53) Oil Pan (model L) partslist.
Parts such as the Oil Pan (model L): O Ring(d:3.2,id:17.8), Plunger,oil Controll, Bolt 6x25, Plug are included in the Gsxr750 1990 (l) (e01 E02 E04 E15 16 17 18 21 22 24 25 34 39 53) Oil Pan (model L) parts fiche.
In this schematic the "Bolt" is used most often.