They are most likely aluminum...all 911's up to the 996 used aluminum lug nuts. They should be perfectly fine; and yes, they are very important to center the lug bolt.
RN, I can't even imagine how the wheel seated without those...you were blessed!
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JGM
2002 Boxster S
1973 911 Green FrankenMeanie
PCA DE Instructor circa '95
Last edited by jmatta; 01-09-2009 at 01:25 PM.
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