Stanley Engineered Fastening 8187-10 Straight Flute Hand Tap, 5/8″-11, Plug, 4
Screw Thread Insert STI Tap, Thread Size 5/8 In.-11, UNC, Overall Length 4 1/4 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 2 in, Tap Chamfer Plug, Thread Limit H3, Class of Fit 3B, Number of Flutes 4.