WF-N028 is an anti-theft spline drive bulge closed-end lug nut engineered for secure wheel fastening and enhanced protection against unauthorized removal. Its spline drive profile works with a dedicated key-style tool, while the bulge seat provides broader contact around the wheel mounting area. The closed-end configuration helps shield exposed threads from road debris, moisture, and dirt. It is suitable for passenger cars, SUVs, light off-road vehicles, aftermarket wheels, and customized wheel installations.
| NO. | HEX | HEIGHT |
| 1 | 19mm | 51mm |
The lug nut can be produced from high-strength alloy steel using precision cold forming, CNC machining, threading, and spline forming processes. Controlled machining helps maintain consistent thread engagement and drive geometry for reliable installation. Surface treatments such as chrome plating, black finishing, or other corrosion-resistant coatings can be selected according to application requirements. Dimensional inspection, thread checking, and appearance inspection are incorporated into production to support consistent batch quality.
Spline Drive Profile: Designed for engagement with a dedicated spline drive key, adding an extra layer of wheel security.
Bulge Seat Design: The enlarged conical contact area helps distribute clamping force across the wheel mounting surface.
Closed-End Construction: Covers the exposed end of the stud and helps limit contact with moisture, dust, and road contaminants.
Anti-Theft Function: Suitable for applications where additional protection against unauthorized lug nut removal is required.
Custom Surface Options: Available with different finishes to coordinate with various wheel styles and operating environments.
WF-N028 is designed for passenger vehicles, SUVs, light-duty off-road vehicles, aftermarket alloy wheels, and vehicle customization projects. It can be used for wheel replacement, upgraded wheel installation, exterior styling projects, daily road vehicles, and applications requiring spline-drive wheel security. Different thread specifications, seat dimensions, finishes, and packaging options can be considered according to vehicle and customer requirements.
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. is a large-scale specialized enterprise integrating design, production and technical services of automotive wheel accessories.
Tel: +86-13967466955
E-mail: michelle_goodluck@163.com
Add: Building 19, No. 22 Dutou Road, Liyang Town, Ninghai County, Ningbo City, Zhejiang Province, P.R. China
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