The Nut,hex.cap,8mm is the cheapest item from this partsfiche.
The Washer A 8mm is the most widely applied product in the SH50D SCOOPY 1995 (S) FRANCE CMF KPH LUGGAGE CARRIER ( four times ).
Some items from this specific schematic: Carrier Luggage Nh1, Bolt,hex.,cap,6x4, Nut,hex.cap,8mm, Washer 6mm.