Premium Long Shank Nut Machine Taps | M2-M22 HSS-E Taps for Fastener Production Lines | Factory Direct High-Durability Threading Tools

1. Introduction: The Foundation of Fastener Manufacturing

Our Long Shank Nut Machine Taps are specifically designed for the high-volume production of industrial nuts. Unlike standard machine taps, the elongated shank allows multiple finished nuts to accumulate on the tool during the continuous tapping process of automatic nut-tapping machines.

Manufactured from premium HSS-M2 or HSS-E M35 Cobalt, these taps offer exceptional torsional strength and wear resistance. Every thread is CNC ground to ensure a consistent 6H tolerance, providing the precision required for Tier-1 automotive and industrial fasteners.

2. Product Parameters (Based on Technical Chart)

3. Dimensional Dimension: Engineered for Speed

• Extended Reach (Long Shank): The long shank architecture is optimized for automated discharge systems, reducing machine downtime and increasing parts-per-hour (PPH).

• Short Thread Length (Lc): Designed to reduce friction and torque during the through-hole tapping of standard nut thicknesses.

• Precision Shank (d): The shank diameter is engineered to be slightly smaller than the minor diameter of the thread, allowing finished nuts to slide smoothly over the shank without jamming.

4. Technical Advantages & Metallurgy

• Substrate Performance: Choose HSS-M2 for standard carbon steel nuts or HSS-E M35 (5% Cobalt) for high-tensile (Grade 8/10) or stainless steel nuts.

• Surface Integrity: Fully ground thread profiles with a high-polish finish to minimize friction and prevent material galling.

• Chip Management: The straight flute design provides excellent rigidity, essential for the high-torque environment of industrial nut machines.

5. Application & Packaging

• Target Industry: Perfect for high-speed automatic nut tapping machines and specialized fastener production lines.
• Material Suitability: Optimized for mild steel, alloy steel, brass, and aluminum.
• Packaging: Individually vacuum-sealed in shockproof Rose-Box plastic tubes, treated with high-viscosity anti-rust oil for a 36-month shelf life.

6. Professional FAQ

Q: Why is the bottom hole size for M12 listed as 9.00mm?

A: Note that nut taps often follow specialized tolerances for fastener manufacturing. Always verify your required thread engagement percentage (usually 65%-75%) before selecting your final drill size.

Q: Can these taps be used on a standard CNC VMC?

A: While possible, these are specialty Nut Taps optimized for continuous flow. For standard CNC blind-hole or through-hole applications, we recommend our Spiral Point or Spiral Flute series.

Q: Do you offer custom shank lengths or bending for these taps?

A: Yes. As a professional factory, we can customize the total length (L) and shank configurations to match your specific automatic tapping equipment.