Bolt size for harmonic balancer bolt hole tap

[jim68127]

Any one know off hand what the size of the bolt and thread specs are for this bolt? A friend's kid screwed up the first few threads in the crank by not using a cap on the end of the puller. There is a place locally that would have a tap if it does not have a special thread count or pitch. Otherwise I might have direct them to McMaster Carr or MSC. The bolt has the 15mm head and is out of an '00 Malibu 3.1 LS.

[Superdave]

I think it's 12mm x 1.75 pitch but i'd confirm that by going to the hardware store with your stock bolt and matching it up. It could also be 1.5 pitch.