Cut Thread Fractional Plug Tap - 7/16" - 20 NF - Hanson

The Hanson 1440 Cut Thread Fractional Plug Tap – 7/16In - 20 NF is a professional-grade tool engineered for demanding hand tapping applications in automotive and industrial environments. Crafted from durable high carbon steel, this Made in USA plug tap delivers precise Class 2B threads, ensuring reliable and secure fastener engagement. Its design focuses on efficiency and longevity, making it an essential addition to any technician's toolkit.

Key Features

• High Carbon Steel Construction: Provides exceptional hardness and moderate wear resistance, ideal for hand tapping and extended tool life in rigorous professional use.
• 7/16"-20 NF Plug Tap: This style features a chamfer of 3 to 5 threads, allowing thread formation to begin close to the bottom of through-holes for versatile application.
• Precision Class 2B Threads: Produces internal threads that conform to the industry's most common standard, balancing performance, manufacturing economy, and ensuring reliable interchangeability with mating fasteners. This class also accommodates plating or finishing to a limited extent.
• Four Highly Polished, Straight Flutes: Engineered to facilitate rapid chip removal and reduce clogging, promoting smoother tapping operations and extending tool durability. Straight flutes also offer strength and rigidity, making them suitable for tough materials.
• Designed for Difficult Hand Tapping: Built to withstand the stresses of challenging hand threading tasks in a variety of materials common in professional settings.
• Made in USA: Guarantees quality manufacturing and adherence to stringent production standards.

Applications

This Hanson plug tap is indispensable for creating or repairing 7/16"-20 NF threads in a wide range of materials, including mild steel, cast iron, aluminum, brass, copper, magnesium, and alloy steels below 32Rc. It is a robust solution for maintenance, repair, and overhaul (MRO) tasks in automotive workshops, machinery fabrication, and general industrial equipment assembly, where consistent thread quality is paramount.

Specifications

• Manufacturer: Hanson
• Model Number: 1440
• Thread Size: 7/16 inch - 20 National Fine (NF)
• Tap Style: Plug
• Material: High Carbon Steel
• Number of Flutes: 4
• Thread Class: 2B
• Overall Length: 3.25 inches
• Recommended Drill Bit Size: 25/64 inch