Tap FANAR Narzynka UNC 7/16-14 DIN 22568 HSS 800 (2A) – thread cutting tool

FANAR Narzynka UNC 7/16-14 DIN 22568 HSS 800 (2A) is a hand or machine tap designed for cutting and forming UNC 7/16-14 threads to DIN 22568 standards. Made from high-speed steel HSS 800, this tap delivers consistent thread geometry with a 2A tolerance class suitable for general metalworking, repair and assembly tasks that require unified national coarse (UNC) threads. The tool is intended for reliable performance in common workshop environments and offers compatibility with standard tapping procedures for UNC thread series.

Advantages

The FANAR tap is manufactured from HSS 800, providing wear resistance and dimensional stability for machining a variety of metals. Conformance to DIN 22568 ensures standardized thread form and compatibility with UNC 7/16-14 fasteners. The 2A tolerance class provides an industry-standard fit for external counterparts while allowing use both manually and in machine tapping setups. The tool's geometry supports effective chip control and repeatable quality of thread profiles when used with appropriate cutting parameters and lubricants.

Suitable for

• Cutting UNC 7/16-14 threads in steel, alloy steel and non-ferrous metals
• Workshop repair and maintenance tasks requiring UNC threads
• Assembly of components using UNC 7/16-14 bolts or studs
• Manual hand tapping and machine tapping operations

Key specifications

• Thread form: UNC (Unified National Coarse) 7/16-14
• Standard: DIN 22568
• Material: High-speed steel HSS 800
• Tolerance class: 2A (external thread tolerance)
• Intended use: Hand and machine tapping

How to use

Select the correct drill size for a 7/16-14 UNC tap drill and secure the workpiece to prevent movement. When hand tapping, align the tap square to the hole and start cutting with steady downward pressure, reversing slightly to break chips as needed. For machine tapping, set appropriate spindle speed and feed for the material being machined and use a rigid setup. Apply suitable cutting fluid to improve tool life and chip evacuation and clear chips frequently to avoid clogging the flutes. Finish by inspecting thread geometry and fit with a mating fastener.

Usage recommendations

Use recommended tap drill sizes for UNC 7/16-14 and select cutting speed and lubricant according to the workpiece material. For best results, ensure proper alignment and secure clamping; reduce speed and increase pecking or chip-breaking actions when tapping difficult or long holes. Replace the tap when wear or damage affects thread quality.