Buy the OEM bolts! As cgmaster stated above, hardware store bolts are junk, additionally those bolts which are functional, correct? (three piece rim) will effect the trueness of the rim if you pull them apart and don't torque them correctly. $80 a rim is cheap, for a $1,000 wheel. Real graded bolts are always traceable, hardware store bolts are A) Junk B) Expensive for the overseas inferior quality C) Will not care when your remains are scattered all over the road, because you were pretending to be an engineer.