Spherical Rod End System of Measurement Inch Ball Stud Center Length 1 in Ball Stud Thread Length 1/2 in Ball Stud Thread Size 1/4 In.-28 Bore Diameter 1/4 in Head Outside Diameter 3/4 in Head Width 0.281 in Shank Thread Length 1 in Shank Thread Size 1/4 In.-28 Housing Material Carbon Steel Shank Thread Direction Right Hand Application Low Load Moderate Oscillation Ball Diameter 0.5 in Ball Material Alloy Steel Ball Material Grade 52100 Ball Stud Material Carbon Steel