OSG 1680400 Straight Flute Hand Tap Bottoming, 4 Flutes($17.19Value)
Straight Flute Tap, Thread Size 5/16 In.-32, UNEF, Bottoming, Overall Length 2 23/32 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 13/16 in, Thread Limit H3