Jam Nut, 23MM, Right Hand

23mm-1.5 right hand threaded jam nut.  This is the thread you'll typically find on Toyota FJ 80 tie rod ends.

Jam nuts are an important component.  They keep the primary component (heim joint or tie rod end) from spinning.  They are NOT however a nut that should be used to fasten.  They work fine for their intended purpose, but sometimes they are misused and treated like a normal nut.  They are made thinner than a typical fastening nut, and the likelihood of thread tear out when used in a fastener application is higher.