ive also recently bought a set
if i recall , the bolts need to be loosened and retightened three times initially - dunno about after that
they can be reused , but i made a point of measuring each bolt beforehand and writing down an average on the package. If i ever need to loosen them again , i will re measure prior to using them.if they are over a limit as given by ARP , buy new ones
contact them direct , they will reply to your mails - they are very jacked when it comes to customer service
i paid ZAR560.00 for a set , how much your side?