FANAR NARZYNKA UNF 9/16-18 DIN 22568 HSS 800 thread tap

FANAR solid HSS 800 thread tap for UNF 9/16-18 threads manufactured to DIN 22568 provides a precision tool for cutting internal fine threads. The tap is made from high-speed steel (HSS 800) and is designed to produce internal threads with 2A tolerance class. It is intended for use in production and maintenance environments where UNF 9/16-18 fine threads are required and can be used in a suitable tap holder or appropriate machine for metalworking and precision threading tasks.

Advantages

The solid HSS construction offers wear resistance and heat tolerance suitable for repeated cutting operations. Compliance with DIN 22568 ensures dimensional accuracy and repeatable thread quality to 2A tolerance class. The tool geometry is optimized for producing clean UNF 9/16-18 internal threads in a range of metallic materials when used with correct speeds, feeds and lubrication.

Suitable for

• Cutting UNF 9/16-18 internal threads in steel, stainless steel and non-ferrous metals
• Production environments requiring consistent 2A tolerance class threads
• Maintenance and repair tasks where replacement or rethreading of UNF fine threads is needed
• Machine tapping with appropriate tap holders and tapping machines

Key specifications

• Thread form and pitch: UNF 9/16-18
• Material: high-speed steel (HSS 800)
• Standard: DIN 22568
• Tolerance class: 2A for internal threads
• Tool type: solid hand/machine tap (use with compatible holder or machine)

How to use

Select an appropriate tap holder or tapping machine and secure the workpiece. Center and pilot the hole to the correct diameter for UNF 9/16-18 tapping. Use recommended cutting speeds, advance rate and suitable cutting fluid for the workpiece material. Begin tapping with steady, controlled feed; reverse periodically to break chips if tapping by hand or use machine-controlled chip break cycles. After completing the thread, back the tap out carefully and clean the thread and tool to remove chips and cutting fluid.

Usage recommendations

Use proper hole size and alignment to achieve 2A class threads; employ cutting fluid appropriate to the material to reduce wear and improve thread finish. Inspect taps periodically for wear or damage and replace when thread quality degrades. For hard or abrasive materials, consider reduced speed and pecking or stepped tapping cycles to control chip formation.