Tensho, I looked at the alignment of the holes and while the screw hole can be aligned, the mekugi hole seems to be off by 1/4" or so It is somewhat difficult to get an accurate picture of the situation, see pic. I would swear on a stack of bibles that this tsuka is original to the sword, so it stands to reason that the habaki may be the culprit. I will have to go through some more examples of late war swords to see if most, if not all, had habakis that matched the shinogi geometry....