Do these lug nuts need any prep before installation?

Inspect the threads on both the studs and nuts before install. If studs or nuts show rust or debris, clean them lightly with a wire brush. Thread engagement is critical — mismatched thread pitch will cause cross-threading.

Will I need different hardware to mount these?

These thread directly onto existing M12x1.25 studs — no additional hardware required. Tighten to your vehicle's factory specification per your service manual.

What makes aluminum lug nuts different from steel?

Aluminum is lighter and resists corrosion, but requires care during installation. Tighten with a torque wrench to avoid stripping the threads. They're ideal for show and street use where weight savings matter.