Is there a specific bolt that should be used to replace the ones holding the wheel hub assemblies to the knuckles?

1999 f150 4x4

 

I reused my old ones.

 

So did I.

 

If you need new ones, get them from the dealer.

 

I've reused them before also, thanks but I need to replace them.

One was missing, and another is getting a little worn and I don't want to put it on and not be able to get it off next time.

I'll try giving the dealership a call and see what they say.

 

Found they are ford part number n808718s439.

I used Dorman 917-517. Not specifically for the f150, or Ford. Think it's actually for Dodge. Anyway, it's longer. I ended up cutting it down after installing but it seems to work fine. I reused the other two bolts despite the heads being slightly messed up.