FLYCLE 1/2-20 Bulge Acorn Lug Nuts 20pc Chrome 1.89" — 60° Conical Seat, 3/4" Hex

These are 20 chrome-plated, 1/2-20 closed-end bulge acorn lug nuts — 1.89" long with a 60° conical seat and 3/4" hex, engineered for aftermarket wheels that accept a bulge acorn style.

Built for trucks, SUVs and classic vehicles that use 1/2-20 wheel studs and a 60° conical seating surface, this set from FLYCLE offers forged SCM435 steel construction, heat treatment for strength, and a corrosion-resistant chrome finish. The closed-end acorn design protects threads from dirt and moisture while delivering a finished look; these lug nuts fit many popular models and are intended for aftermarket wheel applications that require this exact seat and hex size.

Which vehicles and wheels will accept these lug nuts?

They fit vehicles that use 1/2-20 threads and a 60° conical (bulge) seat. The product is commonly compatible with a range of Jeep, Dodge, Ford and other trucks and SUVs, but fitment depends on wheel seat type rather than vehicle year alone.

• Common compatibility examples: Nitro, RAM 1500, Bronco, F-150 (5-lug), Mustang, Cherokee, CJ, Comanche, Commander, Grand Cherokee (5-lug), Liberty, TJ, Wrangler.
• Designed for aftermarket wheels with conical 60° seat — not for mag, ball, or round seats.
• Confirm your wheel requires a 1/2-20 thread and 3/4" hex before purchase.

How strong and durable are these FLYCLE lug nuts?

Made from SCM435 cold-forged steel and heat treated to improve mechanical properties, these lug nuts are built to withstand the loads and stresses of on-road use. Precision-machined threads ensure secure engagement with wheel studs and consistent torque performance.

• Material: SCM435 cold-forged steel for high tensile strength.
• Heat-treated for enhanced durability and fatigue resistance.
• Chrome plating adds corrosion protection and a polished appearance.

What are the exact dimensions and installation details?

Each lug nut measures 1.89 inches (48 mm) in length and 22.7 mm across the widest point, with a 3/4" (19 mm) hex for the socket. They have a closed-end design that shields the stud tip and uses a bulge acorn (60° conical) seating to match compatible aftermarket wheels.

• Thread: 1/2-20 (UNF) — fits studs with same pitch and diameter.
• Seat angle: 60° conical (bulge acorn) — must match wheel seat.
• Socket: 3/4" (19 mm) hex; length: 1.89" (48 mm); width: 22.7 mm.

Are these lug nuts suitable for everyday use and maintenance?

Yes — the closed-end design keeps contaminants out of the threads and the chrome finish helps resist rust, making them practical for regular driving and seasonal conditions. However, they are specified for aftermarket wheels with the matching seat type and should be torqued to your vehicle manufacturer’s recommended values.

• Closed end prevents water and grime intrusion into stud threads.
• Chrome finish helps maintain appearance and resist corrosion.
• Use a properly sized 3/4" socket and follow correct torque specs when installing.

Who is this for: This 20-piece set is ideal for owners of trucks, SUVs and classic 5-lug vehicles that have aftermarket wheels requiring a 1/2-20 thread and a 60° bulge acorn seat. It’s aimed at DIYers, mechanics and restorers who want durable, protective closed-end lug nuts with a polished chrome look; do not use them on wheels that require mag, ball, or round seats.