Self-Locking Insert Kit, System of Measurement Inch, Insert Diameter 5/16 in, 3/8 in, 7/16 in, 1/2 in, 5/8 in, Internal Thread Size #10-32, 1/2 In.-20, 1/4 In.-28, 3/8 In.-24, 5/16 In.-24, Thread Direction Right Hand, Thread Type Fine, Overall Length...