McGard Cone-Seat Wheel Locks 1/2"-20 Thread Set of 5 — Chrome, Hardened Theft-Deterrent

McGard 24538 is a set of five chrome cone-seat wheel locks (1/2"-20 thread) — four locks for road wheels, one for the rear spare, plus a matching key.

Built in the USA for long-term theft deterrence, these one-piece wheel locks replace standard lug nuts but need the included specialized key to remove. Machined from restricted chemistry steel and finished with multiple layers of nickel and microporous chrome, the 24538 combines hardened construction with corrosion resistance. The design features a narrow pattern groove and a guiding steel collar on the key to help align the key to the lock for straightforward installation and removal.

How do these wheel locks fit my vehicle?

The McGard 24538 uses a cone-seat design and a 1/2"-20 thread size, a common specification for many cars, trucks, and SUVs. Fitment requires checking your vehicle’s lug nut seat type (cone), thread pitch (1/2"-20), and bolt diameter. Always confirm compatibility with your wheel and spare carrier before purchase.

• Thread size: 1/2"-20
• Seat type: cone (tapered)
• Includes one lock for a rear-mounted spare tire carrier
• Intended for car, truck, and SUV applications

What security features prevent theft and tampering?

Each lock is CNC-machined from through-hardened, restricted alloy steel to resist cutting and stripping. The unique key patterns are computer-generated for high variety, and the extra-narrow groove around the pattern hinders common removal tools from gaining purchase. The keyed system requires the matching McGard key for removal, turning ordinary lug nuts into a theft-deterrent system.

• Through-hardened restricted chemistry steel
• Computer-generated, near-infinite key patterns
• Extra-narrow pattern groove to resist tool intrusion
• Key collar guides alignment for ease of use

How does the finish hold up against weather and road salt?

McGard applies a multi-layer plating process to protect finish and slow corrosion. The 24538 features three nickel layers topped with a microporous chrome layer that delivers a shine while guarding against rust and surface wear. Proper installation and occasional cleaning will help maintain appearance and longevity.

• Multi-layer plating: 3x nickel plus microporous chrome
• Corrosion-resistant finish for road use
• Durable under typical weather and salted roads
• Simple maintenance: clean and inspect periodically

Who is this product for? The McGard 24538 set is ideal for vehicle owners who want a robust, OEM-grade theft-deterrent for their wheels and a matching lock for a rear-mounted spare. It suits drivers of cars, trucks, and SUVs who prefer a hardware solution built to OEM standards and manufactured in the USA. Choose this set when your wheels require a cone-seat, 1/2"-20 thread lock and when you want a keyed system that balances strong materials with a corrosion-resistant finish.