95 E320 I’m wrapping up a head gasket and timing replacement, have this bolt left over and have no idea where it came from. Hoping it’s not an integral part of things and someone could recognize where it would go. Takes a 6 mm hex

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero