(I forgot to check last night when I was working on the car)

I want to pick up a single die (ie tap & die) to chase the external threads on the studs that hang out of the bottom of the block (where the oil pan connects to the block)

I *think* they're 10mm, but can anyone confirm the size as well as the thread pitch? (ie 1.25 vs 1.50)

Thanks. I want to go buy this at lunch today and forgot to bring the stud with me, etc.

 

10mm is the size of the head of the bolt or nut..

The actual size of the stud is 6mm x 1.0mm pitch..

 

Awesome - thanks!!!!!