Product Specifications:
This A30 HSSE spiral flute nut tap is specifically designed for high-speed threading of nuts and threaded inserts. The A30 grade (high-cobalt powder metallurgy) provides excellent red hardness and wear resistance, particularly suited for stainless steel and high-strength alloys. The 4‑flute design reduces cutting load per flute and improves chip splitting, while the 15° spiral angle ensures smooth chip evacuation in blind holes. With an overall length of 125mm and working length of 25mm, it is optimized for nut tapping applications on CNC machines and automatic tapping units.
The M20x1.5 nut tap is commonly used in fastener production, automotive wheel nuts, heavy equipment assemblies, and structural connections. It performs exceptionally well in stainless steel (304, 316), carbon steel, alloy steel, and aluminum alloys. The uncoated substrate offers good performance, but TiN coating can be applied upon request to further reduce friction and extend tool life in abrasive stainless steel.
Custom options include alternative coatings (TiAlN, CrN), left‑hand flutes, and special thread tolerances. For high-volume nut tapping operations, this A30 HSSE tap delivers consistent thread quality and long tool life.
Spiral flute taps are ideal for blind holes (chip evacuation upward), while spiral point taps are best for through holes.Read full guide →
Available coatings: TiN (gold, general purpose), TiAlN (violet, high heat), CrN (silver, low friction), AlCrN (dark gray, hard materials). View full coating guide →
Metric: M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30. Also available in UNC, UNF, and NPTF threads. Custom lengths and shank configurations. View more size chart →
