I forget the size male triple square (spline) needed, but I do recall the torque to retighten was 22ft/lb, secured with a drop of Loctite on each, per the BBS rep.
The Loctite may prevent galvanic corrosion as well as preventing loss of the bolts, since the bolts are titanium threaded into aluminum.
Wurth's silver to match the wheel paint color.
BTW, BBS does not have replacement parts for these wheels, as they were supplied directly to Porsche in Germany for assembly and never stocked nor assembled by BBS .
BOL
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