Determining drain plug size and pitch.
Typically many newer vehicles have metric drain plugs. There are
several
ways you can measure. You might try to bring your plug to a fastener
house
to measure it or ask the dealer. Screwing a nut on the drain plug has
also
worked to determine the size. If you have a measuring instrument like a
veneer caliper you can measure across the threads.
We also have a printable bolt chart that you could align the plug to
get the
size and thread pitch.
http://www.timesert.com/html/faq.html#22
This page of bolts will probably not look like your drain plug but
that's not
a problem what we are looking at is the thread size and pitch.
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