Long Shank Nut Hss Steel Taps M22 TiCN Coating Machine Tap M6
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)
| Size | Total Length (L) | Thread Length (Lc) | Shank Ø (d) | Recommended Bottom Hole |
| M2 | 36.00 | 12.00 | 1.40 | 1.60 |
| M3 | 40.00 | 15.00 | 2.24 | 2.50 |
| M4 | 50.00 | 21.00 | 3.15 | 3.70 |
| M5 | 55.00 | 24.00 | 4.00 | 4.20 |
| M6 | 60.00 | 30.00 | 4.50 | 5.00 |
| M8 | 65.00 | 36.00 | 6.30 | 6.75 |
| M10 | 70.00 | 40.00 | 8.00 | 8.50 |
| M12 | 80.00 | 47.00 | 9.00 | 9.00 |
| M16 | 95.00 | 58.00 | 12.50 | 14.00 |
| M20 | 110.00 | 62.00 | 16.00 | 17.50 |
| M22 | 110.00 | 62.00 | 18.00 | 19.50 |
3. Dimensional Dimension: Engineered for Speed
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Extended Reach (Long Shank): The long shank architecture is optimized for automated discharge systems, reducing machine downtime and increasing parts-per-hour (PPH).
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Short Thread Length (Lc): Designed to reduce friction and torque during the through-hole tapping of standard nut thicknesses.
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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
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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.
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Surface Integrity: Fully ground thread profiles with a high-polish finish to minimize friction and prevent material galling.
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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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.