Spherical Rod End System of Measurement Inch Ball Stud Center Length 2 1/2 in Ball Stud Thread Length 1 3/8 in Ball Stud Thread Size 5/8 In.-18 Bore Diameter 5/8 in Head Outside Diameter 1 1/2 in Head Width 0.562 in Shank Thread Length 1 1/2 in Shank Thread Size 5/8 In.-18 Housing Material Carbon Steel Shank Thread Direction Left Hand Application Low Load Moderate Oscillation Ball Diameter 1.125 in Ball Material Alloy Steel Ball Material Grade 52100