Standard Pack = 1 piece(s). Ball Diameter = 0.6875 IN; Center of Ball to End = 1.47 IN; Center of Ball to Under Shoulder = 0.5 IN; Shank Diameter = 0.375 IN; Shoulder Diameter = 0.75 IN; Thread = 10-24 IN; Type = Short Shank Inpection Tooling Ball;