Rotax Battery Fixation Kit. This kit attaches the wiring harness leads to your Rotax battery, typically there are (2) of these kits per Rotax Battery.
Overview
Denoted by item 9 on the diagram, this kit includes (1) fixation nut, with a phillips-head type screw, and (1) small 'rectangular' threaded block the screw threads into.
Typically each Rotax kart engine requires (2) of these fixation nuts.