The most reasonably priced component used on the Pk50m Wallaroo 1994 (r) Belgium / Sel Winker is the Screw,tapping,4x3.
Check out any of the thirteen Winker components enlisted.
Parts such as the Winker: Screw,tapping,4x3, Bulb (12v10w), Base,l.winker, Reflector are included in the Pk50m Wallaroo 1994 (r) Belgium / Sel Winker parts fiche.