Spherical Rod End System of Measurement Inch Bore Diameter 1/4 in Head Outside Diameter 3/4 in Head Width 0.25 in Shank Thread Length 5/8 in Shank Thread Size 1/4 In.-28 Housing Material Stainless Steel Shank Thread Direction Left Hand Application Light Duty Ball Diameter 0.5 in Ball Material Stainless Steel Ball Material Grade 440C Bore Diameter Tolerance +0.0015/-0.0005 in Housing Material Finish Chrome Plated Inner Ring Width 0.375 in Maximum Ball Swivel 27 Degrees