Hand Tap, Taper, General Purpose, High Speed Steel, Plain Finish, 4 Flutes, Size 7/16, Pitch 20, UNF, Thread Length 1-7/16 In, Overall Length 3-5/32 In, 7-10 Pitches, Pitch Diameter Limits H5, Shank Dia 0.323 In, Use With Machine or Tap Wrench For Inside Thread Producing, ANSI Standards