Originally Posted by andrewclaus

If that freehub bolt was loose, you may still have problems. That shouldn't have happened, and it may be damaged. Keep a close eye on it. If it reoccurs and a new freehub and bolt doesn't fix it, the threads in the hub are damaged and you'll need a new hub or wheel.

The last time I needed to replace that style freehub, I bought a NOS hub pretty cheap on eBay and stripped it. If there's a bike co-op near you, you'll probably find salvaged parts there.