Do these lug nuts require a special key to remove?

Yes — the four locking nuts use a dedicated key to prevent wheel theft. Keep that key accessible; losing it will complicate removal later.

Will these fit my stock wheel studs?

These are M12 x 1.25 thread. Confirm your vehicle uses the same spec before ordering — a quick check of your owner's manual or existing lug nuts will verify compatibility.

How tight should I torque these?

Refer to your vehicle's service manual for the correct torque value. Lug nut specs vary by manufacturer, and over- or under-tightening creates safety issues.