Thread Forming STI Tap: #4-40 UNC, H2, Semi-Bottoming, V Finish, High Speed Steel MPN:1626000308

Thread-forming taps are widely used for tapping threads that do not require chip evacuation because the process eliminates the need to create chips as the die-form cuts into the material and thus expands like a punch, resulting in excellent surface finishes with minimal damage to the material being tapped. These types of taps are ideal for stainless steel as well as plastics but are not ideal for use with carbon steel due to risk of breaking on breakthrough. #4-40 is a common size of thread form tap that can create an M36 tap internal threads equivalent (Metric to English Standard), allowing for more universal compatibility in different engineering applications, and its made from High Speed Steel that makes it suitable for a wide range of materials. Due to these unique features the Thread-forming Taps are commonly used by industries such as Aerospace or Electronics where precision is essential to minimize rework.