The most reasonably priced component used on the Sfx50 1998 (w) Switzerland Frame Body is the Rivet Blind 2,4x7.
The Frame Body assembly is constructed from several parts from which the Body Comp. Frame Nh1 is the most expensive.
Some items from this specific schematic: Bolt,flg.,10x190, Bolt,flange,8x50, Rivet Blind 2,4x7, Rubber B,link Sto.