WF- N023 Anti‑Corrosion Bulge Acorn Blind Lug Nut
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Bulge Conical Closed End

WF- N023 Anti‑Corrosion Bulge Acorn Blind Lug Nut

WF-N023 is manufactured from high-strength alloy steel using an integrated cold-heading process and is designed for demanding road conditions and high-humidity environments. Its distinctive Bulge Acorn profile increases the load-bearing contact area, while the closed blind-hole design helps isolate the threads from rainwater, dirt, and road debris, reducing the risk of thread corrosion and seizure. A multi-layer composite electroplated finish combined with corrosion-resistant surface treatment provides enhanced rust protection and durability after rigorous salt spray testing, while also maintaining a clean and refined wheel appearance.

Product Specifications

NO. HEX HEIGHT
1 19mm 35mm
2 3/4° 35mm
3 19mm 32mm
4 3/4° 32mm
5 19mm 50mm
6 19mm 60mm
Material & Manufacturing Process


High-Strength Base Material: Cold-heading-grade high-strength carbon steel or alloy steel is used and formed through an integrated stamping process to achieve consistent overall mechanical properties.
Precision Thread Processing: High-precision thread rolling technology produces well-defined thread profiles and secure engagement, helping improve vibration resistance and reduce the risk of loosening.
Composite Corrosion-Resistant Coating: The surface is treated with multi-layer electroplating and sealing protection, significantly improving resistance to corrosion in demanding road environments.

Fitment & Installation Instructions


Seat Type Verification: Before installation, confirm that the wheel uses a conical seat for the lug nuts. Do not use this product with ball-seat or flat-seat wheels.
Manual Thread Engagement: Start threading the lug nut by hand and turn it smoothly for at least 5–7 rotations to help prevent cross-threading and thread damage.
Cross-Tightening with Correct Torque: Use a professional torque wrench and tighten the lug nuts in a diagonal cross pattern according to the vehicle manufacturer's recommended torque specification. Avoid applying excessive force with a high-impact pneumatic wrench.

Applications


Wheel Upgrades for Passenger Vehicles: Suitable for modified vehicles, passenger cars, and SUVs equipped with alloy wheels featuring compatible conical lug nut seats.
Severe Weather & Coastal Environments: Particularly suitable for vehicles operating in rainy areas, regions where road salt and de-icing agents are frequently used during winter, and coastal environments with high salt exposure.

Why Choose WF ?

Ningbo Wheel Friends Auto Parts CO., LTD. is specialized in producing auto wheel accessories, product type are the wheel, nuts, bolts, Locking Nuts and Bolts, wheel spacer, Tire Valves, Wheel Sockets, Wheel Balancing Weights, Central Rings, etc.


With strong technical force, the company has the advanced production technology and testing equipments, the company insists on "quality first, innovation" the management ideas, by the good faith, "the product quality" strives for the subsistence, the company pays attention to the quality management and personnel, strict execution ISO/TS 16949 quality management standards. Constantly develop new products to meet the market demand. The company exported to Europe, the United States, Australia, The Asian, the Middle East and other countries and regions, favored by domestic and foreign customers.


Customer satisfaction is our development the greatest power , provide the best value is our development objective, we sincerely welcome the customers from home and abroad to visit and guide and cooperate!

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Ningbo Wheel Friends Auto Parts Co., Ltd.
  • 10 +

    Industry Experience

  • 4000 +m²

    Floor Area

  • 100 +

    Number Of Employoos

Ningbo Wheel Friends Auto Parts Co., Ltd. Ningbo Wheel Friends Auto Parts Co., Ltd. Ningbo Wheel Friends Auto Parts Co., Ltd. Ningbo Wheel Friends Auto Parts Co., Ltd. Ningbo Wheel Friends Auto Parts Co., Ltd. Ningbo Wheel Friends Auto Parts Co., Ltd.
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