This WIRE HARNESS/ IGNITION COIL/BATTERY assembly utilises two Screw,flat 6x12(s) - the highest specified component.
The most reasonably priced component used on the Sfx50mm 1999 (x) Switzerland Wire Harness/ Ignition Coil/battery is the Bolt,flange,6x10.
Some items from this specific schematic: Key Set, Bolt Flang 6x12, Resistor Comp., Switch Assy.,comb.