Hand Tap, Right Hand, Tap Style Plug, Size 9/16 In. , Pitch 12, Material High Speed Steel, Uncoated Finish, Overall Length 3-19/32 In. , Thread Length 1-21/32 In. , Shank Dia. 0. 424/0. 427 In. , Number of Flutes 4, Thread Type UNC, Pitch Diameter Limits H4