Richeer 1/2-20 Black Bulge Acorn Lug Nuts 20pc — 1.4" Closed-End, 3/4" Hex, Corrosion-Resistant

Richeer 20-piece set of black 1/2-20 closed-end bulge acorn lug nuts delivers a durable, corrosion-resistant wheel fastener designed for 5-lug vehicles with a 60° conical seat.

These lug nuts are cold-forged from SCM435 steel, heat treated for strength, and finished with a protective coating to resist corrosion and keep a neat appearance. Each nut measures 1.4 inches (35.56mm) long with a 22.1mm outer width, a 3/4" (19mm) hex drive, and 1/2-20 threads to match common wheel studs. The closed-end, bulge acorn shape protects exposed threads while providing the bulge-style contact needed for many aftermarket wheels and OEM applications.

Will these lug nuts fit my truck or SUV?

Compatibility depends on thread pitch, seat style, and wheel lug pattern. These are 1/2-20 thread lug nuts with a 60° conical (bulge) seat intended for 5-lug wheels on many older and newer models listed below.

• Fits 5-lug applications on vehicles such as Jeep Wrangler (1987–2018), Cherokee, TJ and Liberty models.
• Compatible with many Dodge/RAM models (e.g., RAM 1500 1994–2001) and Nitro (2007–2011).
• Also fits classic Ford and Bronco years, Mustang generations, Cherokee and other listed models when 1/2-20 threads and bulge seat are present.

How strong and durable are these Richeer lug nuts?

Richeer lug nuts are forged from SCM435 steel and undergo heat treatment to improve tensile strength and wear resistance. Precision-cut threads ensure consistent engagement with wheel studs, reducing risk of cross-threading or loosening under normal driving conditions.

• Cold-forged SCM435 construction for enhanced toughness.
• Heat-treated to increase strength and fatigue resistance.
• Protective coating for improved corrosion resistance and long-lasting finish.

What does the closed-end bulge acorn design do for my wheels?

The closed-end, bulge acorn profile protects exposed stud threads from dirt and corrosion while offering the bulge-style seating many aftermarket wheels require. This shape also gives a cleaner finished look compared with open-ended hex nuts.

• Closed end shields wheel studs from contaminants and rust.
• Bulge acorn seat matches wheels that require a curved seating contact.
• 1.4" length and 22.1mm width provide secure coverage and a substantial visual profile.

What tools and installation notes should I know?

Use a 3/4" (19mm) socket for installation; a spline key is not required for these hex-drive lug nuts. Torque to your vehicle manufacturer's recommended specifications and inspect fitment before driving.

• Use a 3/4" (19mm) socket or torque wrench for tightening.
• Always torque to the OEM-recommended value for your vehicle and wheel combination.
• Confirm thread pitch (1/2-20) and 60° conical seat match your wheel studs before installation.

Who is this for: These Richeer black closed-end bulge acorn lug nuts suit drivers replacing worn or lost lug nuts, enthusiasts swapping wheels who need a bulge/conical seat, and owners of compatible Jeep, Ford, Dodge, and other listed vehicles seeking a corrosion-resistant, OEM-style appearance. The 20-piece pack provides a full set for 5-lug wheels plus spares, and the durable SCM435 steel construction is aimed at users who need reliability and a finished look for daily drivers and weekend projects.