Quote:
Originally Posted by flatsixcrazy
Dang it. I grabbed the wrong tap, M8-1.0 instead of M8-1.25, for a hole in the seatback. Are there any harm in retapping the same hole to M8-1.25? Will there be enough meat for M8-1.25 bolt to bite on? This is not a high stress area. Thanks in advance.
|
I wouldn't do it Andy. Find a -1 bolt to fit or weld it, redrill, and retap. The major diameter of the two are the same. The finer pitch bolt, having smaller threads, has a larger minor diameter by necessity. The corresponding tap drill is different (larger) if you check. So there will be very little thread engagement if your try to tap coarser.