53Driver, don't be a mark. There are no laws about 2". Total lies you've been fed.
http://www.rma.org/tire-safety/tire-repair/
Repairs are for the tread area only. You're within the tread area. You can see the line in the rubber. That screw looks to be less than 1/4" in diamter. Not big at all. Go to America's Tires. They'll probably fix it right, and possibly for free. Nitto even has guidelines about the tire's speed rating after repair. You'll be sad to know that your tires will likely only be good for 130mph.