Material, steel, length 2.250, dia of stock 0.682.Outside diameter of 1st end 0.499 and 0.980 long, 1 groove in center 0.039 wide and 0.633 deep, 2nd end has 2 flats, 0.248 across flats and0.940 long, with a hole 0.261 through flats, center of hole 0.500 from end plus radii and chamfers