Did a quick google search for you. ARP makes them, they're toyota studs, jegs sells them. That said they're 5 a pack not 6, maybe they will part a pack, or have individuals for sale, I'll let you figure that one out.

http://www.jegs.com/i/ARP/070/100-7715/10002/-1

http://www.jegs.com/i/ARP/070/100-7718/10002/-1

If anything they might be a bit too long since they're both coming in at 2.6" which is a little shy of an inch and then about an inch and a half over.

H&R also makes some studs that might be a closer match for the fronts.

http://www.hrsprings.com/applications/studs

They have them with the 14.35 knurl at 50mm long which is almost exactly half an inch over like you were looking for. So maybe the ARP for the rear and H&R for the front would get you where you need to be.

I know I sure as hell wouldn't spend 4 hours in a bin at Pep Boys, less I was in a super pinch =D