These are metric threads. Just go to the next size diameter bolt with the same pitch thread as the originals. Shouldn't need helicoils with metric threads.


However, if you insist on thread inserts, use keenserts, not the cheap helicoils.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport