Parts such as the Winker (1): Screw.washer.4x8, Base,r.fr.winker, Sub-cord,r Winker, Lens Winker are included in the C90z Cub 1993 (p) Mexico / Kph Ss Winker (1) parts fiche.
Of all the components that make up this Winker (1) the Screw,oval,5x18 has the lowest price.
In this schematic the "Screw Cross 3x25" is used most often.