Will these work on my current wheels without modification?

M12x1.5 is a standard thread pitch — these will screw onto matching studs directly. Test-fit one lug nut before committing the full set to make sure your wheel center bore clears the spike design cleanly.

Do I need any tools or hardware beyond what's in the box?

You'll need a socket wrench or impact gun that fits the nut head. The adapter hardware is included, but you'll provide your own wheel mounting hardware and torque to your vehicle's service manual spec.

Can these handle regular street and highway driving?

Aluminum lug nuts are lightweight and decorative. They work fine for daily driving once properly torqued, but confirm your vehicle's lug nut torque spec and tighten to that spec every few hundred miles initially — aluminum can settle slightly under vibration.