BOTTOM 9/16"-18 NF HCS TAP BLK - Hanson

The Hanson 1549ZR BOTTOM 9/16"-18 NF HCS Tap is engineered for professional technicians and mechanics requiring reliable thread repair and creation in blind holes. Constructed from high carbon steel, this bottoming tap delivers consistent performance for routine maintenance and rethreading applications where a Class 2B thread fit is suitable. Its design ensures the ability to cut threads close to the bottom of blind holes, providing maximum thread engagement and strength.

Key Features

• Bottoming Tap Design: Specifically crafted with minimal chamfer (1 to 1-1/2 threads) to produce full-depth threads at the very bottom of blind holes, crucial for robust fastener engagement.
• Precision 9/16"-18 NF Thread: Creates National Fine threads with a 9/16-inch diameter and 18 threads per inch, a common specification for various industrial and automotive components.
• High Carbon Steel Construction: Offers excellent strength, hardness, and wear resistance, making it suitable for hand threading in a variety of materials.
• Straight Flutes: Ground flutes are designed to provide efficient chip removal during threading, preventing chip buildup and facilitating smoother operation.
• Class 2B Thread Production: Produces internal threads with a Class 2B fit, widely used for general applications, including the production of bolts, screws, and nuts, ensuring a good balance of assembly ease and holding strength.
• Hand Threading Optimized: Ideal for manual threading work, allowing for precise control in diverse materials.

Applications

This Hanson bottoming tap is an essential tool for automotive, industrial, and general maintenance professionals. It excels in tasks requiring the restoration of damaged threads in critical components, such as engine blocks, transmission cases, brake systems, or machinery where precise, full-depth internal threads are required in blind holes. Its robust high carbon steel construction allows for effective use across various materials including steel, aluminum, and cast iron. It is particularly useful for rethreading where high accuracy and tolerance threads are not critically essential but reliable thread engagement is paramount.