On Mar 20, 8:17*pm, Uncle Fuzzy wrote:
...My favorite example was an exhaust stud on a 1998 Olds
Intrigue. *Engine side - SAE exhaust flange side - metric.

SAE and metric threads on the same stud? Yup, that's odd all right.

My favorite example of transitional hardware is the Volvo 240 series.
You'd find SAE hardware on anything it inherited from the 140 series
(most bodywork, a lot of the driveline) and metric on anything
introduced new with the 240 (B21 or later engine, M41 or M46
transmission, MacPhereson strut front suspension).

Thanks, Bob K.