WF- N024M Bulge‑Style Closed End Dome Top Lug Nut
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Bulge Conical Closed End

WF- N024M Bulge‑Style Closed End Dome Top Lug Nut

WF- N024M Bulge‑Style Closed End Dome Top Lug Nut features a bulge-style seating structure and a rounded dome top, combining wheel installation requirements with a coordinated overall appearance. The closed-end design covers the exposed threaded area, helping reduce the entry of dust, moisture, and road contaminants while giving the wheel connection a cleaner appearance. It is suitable for aftermarket wheels, passenger vehicle wheels, and various automotive wheel fastening applications. Customized production is available according to different thread specifications, dimensions, and surface finishing requirements.

Product Specifications

NO. HEX HEIGHT
1 19mm 32mm
2 21mm 35mm
Main Features


Bulge-Style Seat: Provides a relatively wider contact area to support compatibility with corresponding wheel mounting structures.
Closed-End Design: Covers the end of the wheel stud and helps reduce exposure of the threaded area to external environmental elements.
Dome Top: The rounded dome profile differs from conventional open-end hex nuts, creating a more complete and refined appearance around the wheel mounting area.
Precision Threads: Threads are machined according to specified dimensions for proper engagement with compatible wheel studs.
Customizable Specifications: Thread size, overall height, outside diameter, hex size, and surface color can be customized according to application requirements.

Material & Manufacturing Process


Base Material Selection: High-strength alloy steel or quality carbon steel is used as the base material and processed through cold heading and forming to provide good tensile strength and fatigue resistance.
Heat Treatment: Quenching and tempering are applied to achieve the required hardness and mechanical properties, helping the lug nuts withstand repeated installation and removal with reduced risk of thread stripping or deformation.
Surface Protection: Multi-layer electroplating, such as copper/nickel/chrome, or black electrophoretic coating can be applied. Salt spray testing helps evaluate corrosion resistance and surface durability against environmental exposure and abrasion.

Applications & Compatibility


Suitable Vehicles: Widely applicable to modified passenger cars, off-road SUVs, light-duty trucks, and other vehicles requiring aftermarket wheel installation, with compatibility available for common thread specifications.
Application Scenarios: Suitable for daily road driving, demanding off-road use, and customized vehicle applications where a distinctive and coordinated wheel appearance is desired.

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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