Of all the components that make up this Rear Suspension the Nut,lock,flanged,10mm has the lowest price.
Parts such as the Rear Suspension: Nut,lock,10mm, Bracket,leaf Spring, Bolt, Nut are included in the Kaf620-sef Mule4010 2014 Usa / Trans4x4 Rear Suspension parts fiche.
The Rear Suspension is made up of components including this Spring-leaf which is the most expensive.