Product Name: Tap; Thread Size: G 1/4-19 (13mm Dia.); Thread Type: BSP (55 Degree) Thread Length: 26mm / 1"; Number of Flutes: 4; Square Head Size: 9 x 9mm/ 0.35" x 0.35" (L*W) Shank Diameter: 11mm/ 0.43"; Total Length: 63mm/ 2.5" Color: Silver Tone; Material: HSS Net Weight: 41g; Package Content: 1x Tap