So… I was sort of sitting on my hands when everybody was talking about the torque required to achieve 250 lb/ft. The one you just removed was tightened WAY more than 250 lb/ft— as it should be.
The reality of those spindles and nuts is “tighter is better”. I’ve never seen one strip or snap. I’m sure other guys have, but I’ve personally never seen it, and I am world-famous for snapping off bolts and studs. Having that nut come loose is far, far worse than having one be too tight. There is an enormous load on that joint, and your rotor’s internal splines depend on it being “spot torqued” (torque it until you see spots).
When you put it back together, 450 lb/ft (at least).