OSG Straight Flute Hand Tap, General Purpose, Series: 102, Measurement System: Imperial, UNC, #4-40, 3.5P-4.5P Plug Chamfer, 3 Flutes, HSS, Steam Oxide, Right Hand Cutting, 0.37 in Thread Length, 1.87 in Overall Length, 0.14 in Shank Dia, Ferrous and Non-Ferrous Metals Material Application, H2 Thread Limit, No Through Coolant (Yes/No)