This schematic depicts all components used in the Lt-z400 Quad Sport 2012 (l2) Usa (e03) Quadsport Quad-sport Front Wheel (lt-z400l2) partslist.
The most reasonably priced component used on the Lt-z400 Quad Sport 2012 (l2) Usa (e03) Quadsport Quad-sport Front Wheel (lt-z400l2) is the Pin.
On this parts fiche the Nut is the most specified component.