The heim housing is made from an Alloy Steel with a bright chrome polished finish. Ball is made from bearing steel and heat treated and hard chrome finished. Race is made from injection molded Nylon. This increases the working life of the heim joint. These heims have a far superior radial static load compared to your non heat treated heims or your rose joints. All heims have a UNF thread.
All heims will come with a jam nut.