Tap FANAR GWINTOWNIK M4 DIN-371C HSSE-PM TS 1400-HT for metric threads M4 (6HX)

FANAR GWINTOWNIK M4 DIN-371C HSSE-PM TS 1400-HT is a solid high-speed steel tap engineered for cutting internal metric threads M4 with DIN-371C geometry and 6HX tolerance. Constructed from HSSE-PM material and finished to the TS 1400-HT specification, the tap is intended for reliable performance in both through and blind holes in steel and common alloys. It is suitable for manual hand tapping and machine tapping applications in production, maintenance, and repair environments.

Advantages

The HSSE-PM composition provides enhanced hardness and wear resistance compared with conventional HSS taps, extending tool life in repetitive operations. DIN-371C profile and 6HX tolerance offer consistent thread form and fit for general-purpose assemblies. The solid construction and TS 1400-HT finish improve chip evacuation and reduce friction during cutting, supporting stable tapping results across a range of ferrous materials.

Suitable for

• Cutting internal metric threads M4 in steel and common alloys
• Through-hole and blind-hole tapping operations
• Manual hand tapping and machine tapping (lathe, milling machine, tapping head)
• Production runs, maintenance, and repair work requiring standardized thread tolerance

When it may not be suitable

This tap is optimized for steel and typical alloys; it may not deliver optimal performance in very abrasive, highly gummy non-ferrous materials or specialized exotic alloys without appropriate cutting fluid and process adjustments. For thread sizes or profiles outside the DIN-371C M4 specification, select a tap specifically designed for those dimensions or tolerances.

Key specifications

• Thread type: Metric internal thread M4
• Thread tolerance: 6HX
• Geometry: DIN-371C (general-purpose straight flute form)
• Material: HSSE-PM (powder metallurgy high-speed steel)
• Intended use: Through and blind holes
• Finish: TS 1400-HT surface treatment

How to use

Select the correct drill size for the M4 core hole, secure the workpiece, and ensure proper alignment before tapping. Use suitable cutting fluid for ferrous materials to improve lubrication and chip evacuation. For manual tapping, apply steady axial pressure and back off periodically to break chips; for machine tapping, set appropriate spindle speed and feed to match material and tap type, and monitor torque to avoid breakage. After use, clean chips from the flutes and store the tap in protective packaging to prevent edge damage.

What to consider before purchase

• Confirm the required thread size and tolerance is M4 6HX and compatible with mating parts
• Verify material compatibility (steel and common alloys) and whether special alloys will need different tooling or coolant
• Determine whether manual or machine tapping will be the primary method to ensure suitable flute geometry and shank features

Usage recommendations

Use appropriate cutting fluid for steel, maintain correct drill pilot size, and avoid excessive torque. Regularly inspect the tap for wear and replace when cutting quality degrades to prevent damage to workpieces and ensure consistent thread quality.