In the widely used staked ball joint assembly, the tube is swaged around the ball for a metal - to - metal ball joint that doesnt allow excessive play. QA1's staked ball joints include a rubber grommet or boot that acts as a highly effective seal against debris. Right and left hand threads are available for use in various OEM and aftermarket applications, including motorsports, lawn and garden, agricultural and construction equipment and many other applications. Commonly used in sway bar end links, throttle and shifter linkages and various other linkages. BALL STUD, , Carbon Steel, Protective Coated for Corrosion Resistance, BODY, , Carbon Steel, Protective Coated for Corrosion Resistance, SPRING, , Stainless Steel.