Just a FYI, but importing things from Fallout or Oblivion, into Skyrim, is forbidden. edit: just to clarify, things taken from mods for Fallout or Oblivion (or other mods from other beth games), I believe is totally ok. As long as you have the mod maker's permission. (Though, for personal use, and no re-distributing, I think it'd be fine either way. could be wrong)
More on topic; If you have experience with a 3d program, and all that, you could try importing the mesh of the Screwdriver, and just copying its data on to an already existing Skyrim weapon, that is similar (such as a staff.) I would guess that would work. But I'm not sure how much you know about all this :\