Thread Forming Screw WYGNIATAK M6 DIN 371C HSSE-PM WGN TiN without grooves

Thread forming screw WYGNIATAK M6 DIN 371C HSSE-PM WGN TiN without grooves is a cold-forming fastener designed to create internal threads in pre-drilled, ductile materials. Manufactured from high-speed steel with powder metallurgy (HSSE-PM) and finished with a titanium nitride (TiN) coating, this screw follows DIN 371C outer dimensions for a reliable fit in standard assemblies. The grooveless design forms material rather than cutting it, producing strong mating threads with reduced risk of chip formation and improved surface finish in the workpiece.

Advantages

The HSSE-PM base material provides high wear resistance and toughness during thread forming operations, while the TiN coating increases surface hardness and reduces friction. The grooveless thread-forming profile eliminates chip generation and reduces debris, which is beneficial for assembly environments that require clean operation. Compliance with DIN 371C outer dimensions ensures interchangeability with standard components, and the design promotes consistent thread quality and improved fatigue performance in appropriate substrates.

Suitable for

• Creating internal threads in pre-drilled holes in ductile metals such as mild steel and aluminum
• Fastening components in metalworking and mechanical assembly operations
• Applications where chipless thread formation and clean assembly are required
• Use in production environments requiring repeatable, high-quality thread formation

Key specifications

• Nominal size: M6
• External dimensions: conforms to DIN 371C standards for head and shank form
• Material: high-speed steel, powder metallurgy (HSSE-PM)
• Surface finish: titanium nitride (TiN) coating for increased hardness and lower friction
• Thread type: forming (cold-forming, no cutting or grooves)
• Intended substrate: ductile materials suitable for thread forming (e.g., mild steel, aluminum alloys)

How to use

Drill a pilot hole to the recommended diameter and tolerance for M6 thread forming in the chosen substrate, then align the screw and apply steady axial pressure while driving at appropriate speed to let the screw form the internal thread. Use a torque-controlled driver or assembly equipment set to the manufacturer-recommended torque values for formed threads in the specific material. Ensure appropriate clamping and support of the workpiece to prevent movement during forming, and avoid excessive speed or impact that could damage the workpiece or tool.

Usage recommendations

For best results, select pilot hole diameter and material hardness compatible with cold thread forming; maintain clean, debris-free holes and use a torque-limited driver. Avoid using this forming screw in brittle or hard materials that cannot plastically flow, and inspect formed threads periodically when used in critical assemblies.