Will these work with my factory wheel studs?

Yes—these are M12 x 1.25 thread, the standard metric stud size. Verify your vehicle's stud spec before ordering to confirm fitment.

Do I need a special socket to install these?

You'll need a spline socket to match the lug nut drive. Standard hex sockets won't grip the spline properly. If you don't have one, add it to your order.

What's the difference between the locks and the regular nuts?

The lock nuts have an internal mechanism that binds to the stud after installation, resisting vibration and theft attempts. Use one lock nut per wheel for security.