Threading die FANAR WYGNIATAK M 8 DIN 371-C 6GX HSSE-PM TIN

FANAR WYGNIATAK M 8 DIN 371-C 6GX HSSE-PM TIN is a solid threading die designed for forming or restoring external metric threads with an M8 nominal diameter. Manufactured to DIN 371-C standards and specified for 6G tolerance class, this tool is made of HSSE-PM high-speed steel and finished with a titanium nitride (TiN) coating to increase surface hardness and resistance to wear during repeated cutting or rethreading operations.

Advantages

The solid design provides stability and concentricity for clean, accurate thread profiles. HSSE-PM material ensures sustained cutting performance and toughness under intermittent loads, while the TiN coating reduces friction and extends tool life. Conformance to DIN 371-C and 6G tolerance class supports compatibility with standard metric fasteners and predictable fit quality. The die’s construction allows use in both manual die stocks and compatible machine holders.

Suitable for

• Forming or repairing external M8 metric threads on bolts, studs and shafts
• General maintenance and assembly work in metal fabrication and mechanical workshops
• Precision rethreading where compliance with DIN 371-C and 6G tolerance is required
• Use with hand die stocks or appropriate machine holders for small- to medium-scale production

Key specifications

• Thread size: M8 (external metric thread)
• Standard: DIN 371-C
• Tolerance class: 6G
• Material: HSSE-PM (high-speed steel, powder metallurgy)
• Coating: Titanium Nitride (TiN) for improved wear resistance
• Type: Solid threading die suitable for manual and machine use

How to use

Secure the die in a suitable die stock or machine holder sized for solid dies. Prepare the workpiece by chamfering the leading edge of the rod or bolt to ease engagement. Apply a suitable cutting or threading lubricant to the workpiece and die to reduce friction and improve chip evacuation. Start the die square to the workpiece and apply steady pressure, advancing the die while maintaining alignment; back off periodically to break chips and clear swarf. After cutting the required thread length, remove the die and clean the threaded area and tool. Inspect the thread for correct profile and fit with mating fasteners.

Usage recommendations

Use appropriate lubricants for the workpiece material, avoid excessive feed or misalignment to prevent premature tool wear, and perform periodic inspection of the die cutting edges. For repeatability in production, verify holder alignment and clamp rigidity.