Parts such as the Front Calipers: Axle No.2, Pad Set (mca), Caliper Assembly,front,left, Bolt 10x37 are included in the Gs750e 1982 (z) Usa (e03) Front Calipers parts fiche.
The Bolt 10x37 is the cheapest item from this partsfiche.
The Front Calipers assembly is constructed from several parts from which the Calipers Assy, Front Rh is the most expensive.