I'm guessing a ratchet and socket. :D
They just thread in, although they can get pretty crusty. A little kroil or WD40 should help with that.
If they're off the car you'll probably have to clamp the F/M/J ball joint in a vice to get enough leverage. Air ratchet would be best, but a breaker bar will do too. I've pulled a few sets at the wrecking yard with a cheap ratchet and a BFH, cheap ratchet so you don't worry about stripping the gear mechanism.
And, it looks like the Grade 8 hardware fits just fine...