I've re-used the nuts before on cars, they hold fine. My truck has new bearings on all 4 corners since last year and no issues at all.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.