Switching to aftermarket wheels on your 1999-2014 F-150 or Super Duty means the factory lug nuts may not seat correctly against new wheel faces. Rough Country's closed-end bulge acorn lug nuts give you a purpose-built M14x2.0 fastener that seats flush, locks tight, and holds up to the demands of daily driving and off-road use. The set of 32 covers a full set of wheels with spares to spare, and a socket key is included so installation requires no specialty tooling.
More seating surface than a standard acorn nut. The bulge acorn profile provides over 6% more contact area against the wheel seat compared to a conventional acorn design. That added surface area distributes clamping force more evenly, reducing the chance of seat deformation on softer aftermarket wheel materials and keeping wheels seated accurately under load.
Cold-forged construction that exceeds OEM specs. Each lug nut starts as carbon steel and goes through a cold-forging process that densifies and aligns the grain structure, producing a fastener that surpasses factory standards in both hardness and tensile strength. The closed-end design prevents moisture and debris from contacting the stud threads, adding another layer of long-term protection.
Black finish built to last. The black plated finish resists corrosion through repeated exposure to road salt, mud, and weather. It also complements blacked-out wheel setups, lift kits, and aggressive off-road builds without drawing attention away from the rest of the truck.
Product Benefits
- Bulge Acorn Profile: Provides over 6% more seating surface area than a standard acorn lug nut for even clamping force distribution.
- Cold-Forged Carbon Steel: Exceeds OEM strength and hardness standards for dependable fastener retention.
- Closed-End Design: Protects stud threads from moisture, salt, and debris.
- M14x2.0 Thread Pitch: Direct replacement fitment for F-150 and F-250/F-350 Super Duty applications.
- 32-Piece Set: Enough to cover all four wheels with additional nuts included.
- Socket Key Included: Allows quick installation and removal without specialty tools.
- Corrosion-Resistant Finish: Black plating holds up against road salt, water, and trail debris.
Note: Fits 2000-2014 F-150 and 1999-2002 F-250/F-350 Super Duty. Verify your wheel seat type before installing; bulge acorn nuts are designed for conical/acorn wheel seats only.
About Rough Country: Rough Country designs and manufactures suspension lift kits, leveling kits, accessories, and hardware for trucks and off-road vehicles. The brand focuses on delivering affordable, bolt-on solutions that improve capability and appearance without requiring major modifications to factory systems.
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Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Trim | Base, FX2, FX4, King Ranch, Lariat, Lightning, Limited, Platinum, STX, SVT Raptor, XL, XLT |
| Vehicle Fitment | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 |
