Tap Tap Style Straight Flute (Hand) Tap Dimension Type Inch Tap Thread Size 5/16 In.-24 Tap Chamfer Plug Number of Flutes 3 Pitch Diameter Limit H4 Tap Material High Speed Steel Tap Finish TiCN Tap Thread Type UNF Right Hand Thread Length 1-1/8 In. Shank Dia 0.318 In. Overall Length 2-23/32 In. Number of Pieces 1California proposition 65 warning