M18x2.5mm Machine Thread Tap DIN 376C HSS-Co Nitride Vaporised ISO2 (6H) 14mm Shank - TECWERK

Take advantage of a machine tap that combines HSS‑Co construction, surface hardening and precision tolerance to deliver reliable M18×2.5 internal threads in demanding materials; order via Metav Werkzeuge or request specialist advice for seamless integration into production.

Machine tap DIN 376C M18×2.5 — HSS‑Co, nitrided & vapour‑treated (TECWERK)

The Machine tap DIN 376C M18×2.5 (HSS‑Co) is a workshop‑grade cutting tool engineered for producing ISO metric internal threads in blind holes, optimised for stainless and other high‑strength steels.

• HSS‑Co for high wear resistance
• Nitrided and vapour‑treated surface
• 40° right‑hand spiral for blind holes
• ISO metric thread M18×2.5, tolerance 6H

Consistent thread fit for industrial assemblies

The Machine tap DIN 376C M18×2.5 is manufactured from HSS‑Co (cobalt high‑speed steel) and benefits from both nitrided and vapour‑treated surface finishes, which improve surface hardness and abrasion resistance. Combined with the ISO 6H tolerance class specified to DIN 13 sheet 1, this geometry provides a predictably snug internal thread fit that reduces the need for rework and ensures consistent assembly behaviour. The flank reliefs are ground to enhance cutting stability, which helps maintain dimensional accuracy over longer production runs.

Optimised geometry for blind holes and reliable chip control

The tool’s 40° spiral with right‑hand helix is designed specifically for producing threads in blind holes, promoting controlled chip formation and evacuation towards the flutes rather than packing in the hole. This feature, together with the form‑C profile, supports smooth penetration into deep or confined bores and lowers the risk of tap breakage in demanding operations. The combination of spiral geometry and ground flanks translates into fewer interrupted cuts and a more reliable machining cycle for materials that are susceptible to workhardening.

Robust shank and straightforward machine compatibility

With a shank Ø 14 mm, the tap conforms to standard machine tool holders for quick mounting and secure clamping, reducing setup time on lathes or tapping heads. The construction is targeted at machining stainless steels and other acid‑ and heat‑resistant alloys with tensile strengths above 850 N/mm², giving the tool longevity where ordinary high‑speed taps would wear prematurely. Visible identification — including the blue ring marking — helps workshop staff distinguish tool types at a glance, supporting efficient tool management and inventory control.

For precise M18×2.5 threads in stainless and high‑strength steels, contact Metav Werkzeuge in Emmerich for availability and technical guidance on the TECWERK machine tap — call +49 2822 7131930 or email info@metav-werkzeuge.com to arrange a tailored supply.

Technical data

• Article number: 2000867418NW
• Label: Maschinengewindebohrer DIN 376C VA M18x2,5mm HSS‑Co nitr.u.vapor.6H TECWERK
• Manufacturer: TECWERK
• UID: 2000867418NW
• Packaging unit: 1

Facts

• Thread: M18×2.5
• Standard: DIN 376C
• Tolerance: ISO 6H
• Material: HSS‑Co (cobalt high‑speed steel)
• Shank diameter: 14 mm
• Spiral angle: 40°
• Hole type: for blind holes

Special features

• Nitrided and vapour‑treated surface
• Form C, Type VA
• Blue ring identification
• Flank reliefs ground
• Right‑hand spiral 40°
• Suitable for rust, acid and heat‑resistant steels > 850 N/mm²

FAQ

What materials is this tap suitable for?
The TECWERK machine tap M18×2.5 is specified for stainless, acid‑ and heat‑resistant steels and other high‑strength alloys with tensile strengths above 850 N/mm², as noted in the product data.

Is this tap intended for through holes or blind holes?
This tapping tool is optimised for blind holes thanks to its 40° right‑hand spiral and flute geometry that aid controlled chip evacuation.

What tolerance and standard does the thread conform to?
Threads produced with this tool meet DIN 13 sheet 1 standards with an internal tolerance class of ISO 6H, ensuring a reliable fit for standard metric fasteners.

What shank size is required for machine mounting?
The tap features a shank diameter of 14 mm, compatible with common machine holders and tapping heads designed for metric cutting tools.

Are there special surface treatments to extend tool life?
Yes; this tap is nitrided and vapour‑treated, which increases surface hardness and wear resistance for prolonged service in demanding machining tasks.

Manufacturer / Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund