Other than a few hardware stores, I wouldn't know. It's some distance from Philly/Camden, but right after you get off the Delaware Memorial Bridge, past the truck stop and various fast food hellholes, on Rte 49, I stopped at a hardware store in town. I know this is a lot to go on, but they had some old USA Schrades and a few Case models.
Just noticed, this should be moved to TGBU.