Spiral Flute Tap, Thread Size 5/16 In. -24, UNF, Overall Length 2 23/32 in, High Speed Steel, Bright (Uncoated), Thread Length 7/16 in, 75 Percent Thread Drill Size I, Thread Limit H3, Thread Direction Right Hand, Number of Flutes 2. This item has been restricted from sale in the following state (s): []