AUTOPTIM M12x1.5 Spline Lug Nuts 20Pc Chrome Closed-End with Socket — Heat-Treated, Corrosion-Resistant

A complete set of 20 chrome, closed-end M12x1.5 spline lug nuts with a matching socket—built for corrosion resistance, secure fit, and easy installation.

These AUTOPTIM lug nuts are aftermarket replacements engineered for common sedans and compact SUVs. Each nut is cold-forged and heat-treated, then finished with a triple chrome plating to reduce surface corrosion while preserving thread accuracy. The one-piece construction and 60° tapered seat are designed to seat reliably on compatible wheels, and the included socket helps get you on the road quickly.

How do these lug nuts fit my vehicle?

The AUTOPTIM set uses an M12 x 1.5 metric thread and a 17 mm hex profile, which is a common specification on many modern passenger cars. The 60° tapered seat matches wheels designed for conical-seat lug nuts. Check your vehicle’s wheel bolt pattern and owner manual or measure an existing nut to confirm match before purchasing.

• Thread size: M12 x 1.5
• Hex socket: 17 mm
• Seat angle: 60° tapered
• Length/width: 35 mm length, 20 mm width

What makes these lug nuts durable and safe?

Each nut is manufactured as a single solid piece to minimize stress points that can cause cracking. The cold-forging and heat-treatment process increases strength, and the chrome finish helps resist rust and environmental wear — important for long-term wheel fasteners.

• One-piece construction to reduce fatigue risk
• Heat-treated steel for improved tensile strength
• Triple chrome plating for corrosion resistance
• Precision threads to maintain a tight fit on wheel studs

What’s included and how easy is installation?

The package contains 20 closed-end spline lug nuts and one socket sized to fit the nut head. Closed-end nuts protect the wheel stud tips from dirt and moisture. Installation is straightforward with a standard 17 mm wrench or the supplied socket; always use a calibrated torque wrench to tighten to the vehicle manufacturer’s recommended torque.

• 20 chrome closed-end lug nuts (enough for 4 wheels plus spares)
• Included socket for convenient fitting
• Compatible with standard 17 mm tools and torque wrenches
• Closed end prevents contamination of wheel studs

Which cars are these lug nuts compatible with?

These lug nuts are made to fit many popular American, Japanese, and Asian vehicles that use M12x1.5 threads and 60° seats. They’re commonly suitable for model years and families like Chevy Impala and Malibu, Honda Accord/CR-V/Civic, and Toyota Camry/RAV4, among others. Verify thread and seat type for your specific year and wheel style before ordering.

• Common fits include select Chevy, Honda, and Toyota models
• Designed for aftermarket wheel replacement or upgrade projects
• Not universal—confirm thread and seat angle for your vehicle

Who is this for? These AUTOPTIM M12x1.5 spline lug nuts are aimed at car owners, DIY mechanics, and wheel installers who need a reliable, corrosion-resistant replacement set for passenger vehicles. If you require a robust one-piece nut with a closed end and a matching socket for straightforward installation, this 20-piece chrome kit is a practical choice. Always confirm the nut’s thread pitch, seat angle, and hex size match your vehicle and wheel specifications before installing.