No it will thread the pre cut threads just fine but the threads will all be cut because they are originally rolled and as such the thread profile is a little different. The problem could arise when you get to the threaded portion, depending on the OD there it may or may not be possible to thread it.
But...cant you add a little spacer bushing or whatever to solve the issue??
I think he'd have to turn down the unthreaded portion? The thread profile on a grade 8 is different? Not different enough to prevent using a grade 5 nut with a grade 8 bolt. I don't think.
The fact that you know that though is amazing. I've never ever said that you weren't a brain.
no, rolled threads and cut threads, the cut thread has a much sharper profile, if you go over them with a die you will remove material, and not just a little either. The real problem for this particular issue is the body diameter. Cut threads have a body diameter that is the same as the thread majro diameter, rolled threads are rolled from a section that has a same diameter as the minor diameter and the threads are rolled and "squeezed" into shape. A lot of automotive fasteners have a section where they are threaded and the body diameter of the rest is actually increased so it's tight in the hole. This section can be a bitch to thread, so either you get stuck or the threads won't form properly because the body diameter is too small.