FK 3-piece precision HRSMX-T/HIN-T Series rod ends offer you durability, strength, and peace of mind. They are high strength with high misalignment built in for increased articulation without spacers. And they have PTFE liners for self-lubrication! Ever try to grease an already installed rod end? Plus, theres no greased fitting to attract dirt or weaken your rod end. HRSMX-T/HIN-T Series rod ends are built from zinc plated, heat-treated, chromate treated 4340 steel with hard chrome plated steel balls and a chromate treated, zinc plated steel alloy race.