Rod end bearing, also known as a heim joint (N.America) or rose joint (U.K.and elsewhere)is a mechanical articulating joint. 

Such joints are used on the ends of control rods,steering linkstie rods,

or anywhere a precision articulating jointis required.

A ball swivel with an opening through which a bolt or other attaching hardware may pass is pressed into a circular casing with a threaded shaft attached. 

The threaded portion may be either male or female.