This is for a valve cover stud and cap nut. Our studs feature an Allen head socket for easy tightening on installation. (Stock replacements require one to double up on nuts to tighten.) Cap nuts also included.
Fits cylinder heads from the M10/M20/M30 engines (Size M6).
M10/Early M30 use 50mm long studs.
M20/Late M30 use 40mm long studs.