On this parts fiche the Nut, Flange(4mv) is the most specified component.
Of all the components that make up this Seat the Bolt, Flange(4my) has the lowest price.
Parts such as the Seat: Bolt, Flange(4my), Pin, Guide, Band, Bolt (4my) are included in the V-max1200 V-max1200c 2001 (1) Usa California Seat parts fiche.