OTUAYAUTO M12x1.5 Lug Nuts 24pcs Black Closed-End Bulge Acorn — 19mm Hex, 10.9 Steel, Corrosion-Resistant

OTUAYAUTO M12x1.5 lug nuts are a 24-piece set of black closed-end bulge acorn nuts designed to replace factory lug fasteners on many Toyota and aftermarket wheels.

These lug nuts are engineered for wheel-fit compatibility, corrosion resistance and consistent torque installation. Cold-forged from 10.9 grade SCM steel, heat treated and finished with a three-layer chrome coating, the set includes a thread gauge to confirm the required minimum install depth. Each nut uses a 60-degree conical taper and a 19mm (3/4") hex head, supplied as 24 pieces to cover full-size trucks, SUVs and spare-wheel needs.

How do I know these will fit my vehicle and wheels?

Fit depends on stud thread pitch, seat angle and flange clearance. These nuts are M12x1.5 thread pitch with a 60° conical taper and require a wheel flange limit of 0.9"; they will not work with capped wheels or wheels needing different seats.

• M12x1.5 thread pitch—verify your studs match.
• 60° conical (bulge acorn) seat—compatible with conical-socket wheels.
• Flange limit 0.9"—measure the wheel seat depth before ordering.
• Use the included thread gauge to confirm ≥6.5 full turns.

What strength and corrosion protection do these lug nuts provide?

The nuts are cold-forged from 10.9 grade SCM steel and heat treated for high tensile strength. A three-layer chrome plating and testing to a 72-hour ASTM B117 salt spray standard improve resistance to rust and chemical erosion in a range of climates.

• Material: 10.9 grade SCM steel, heat treated for durability.
• Finish: 3-layer chrome plating for corrosion resistance.
• Testing: Certified to 72-hour ASTM B117 salt spray standard.
• Performance: Made for exposure to road salts, moisture and heat.

What are the installation and torque recommendations?

Install the lug nuts with a recommended torque of 70–80 ft-lbs and ensure a minimum of 6.5 full turns of engagement on the stud. The set includes a thread gauge to verify the minimum depth; follow vehicle manufacturer torque specs and retorque after initial driving where recommended.

• Recommended torque: 70–80 ft/lbs—use a calibrated torque wrench.
• Engagement: Minimum 6.5 full turns—verify with provided gauge.
• Hex: 19mm (3/4")—use the matching socket for installation.
• Closed-end design—protects threads from debris and moisture.

Which vehicles are these lug nuts commonly used to replace?

This 24-piece set is commonly offered as aftermarket replacements for many Toyota trucks and SUVs and fits a wide range of model years when the stud and wheel seat match. Always confirm fit with your wheel specifications or use the seller’s confirmed-fit tool before purchasing.

• Common matches: Toyota 4Runner, Tacoma, Tundra, Hilux, Land Cruiser, Sequoia and others.
• Model years covered: examples listed 1979–2023 depending on model and wheel.
• Aftermarket wheels: compatible when M12x1.5 thread and 60° seat are required.
• Quantity: 24pcs—suitable for vehicles with 6-lug patterns plus spare or dual-wheel setups.

Who is this for: The OTUAYAUTO M12x1.5 24-piece lug nut set is aimed at owners and technicians who need a complete replacement set for Toyota trucks and SUVs or compatible aftermarket wheels. It suits DIYers, fleet maintainers and professional installers who require strong, corrosion-resistant closed-end lug nuts with a verified minimum thread engagement and a secure 19mm hex fit.