5/16" Screw, 4" Length Under Head, Stainless Steel, Hex Head Lag Screw MPN:R63234069

Emuge's spiral flute tap, with a size of #4-40 and UNC thread type, boasts exceptional performance in thread milling operations. Manufactured using premium cobalt steel with a titanium nitride finish, this tap delivers unbeatable strength and durability for long-lasting use. Its modified bottoming design ensures smooth chip evacuation and reduced cutting forces for improved accuracy and precision. The 2B class of fit offers superior threadform, enabling snug and secure fastening even on brittle or soft materials like aluminum. This tap is ideal for industrial applications in aerospace, automotive, electronics, and medical industries where precise threading is critical.