On this parts fiche the Screw, 5x45 is the most specified component.
The Suzuki HANDLE SWITCH (MODEL K/L/M/N/P/R/S/T) has ten products enlisted in the schematic.
Parts such as the Handle Switch (model K/l/m/n/p/r/s/t): Piece,slide, Spring, Screw, Trunk Box, Plate are included in the Gsx600f Katana 1990 (l) Usa (e03) Handle Switch (model K/l/m/n/p/r/s/t) parts fiche.