I am trying to fix a buddies quill stem corrected. The bolt remains in the head tube as the quill stem is siezed to the fork. I have 4 quill stem bolts that won't screw into the floating nut as the opening on the nut just seems too small. The stem is an 85 3TTT panto with Pinarello so I am trying to salvage it. Do the make different size bolts and nuts for quills? I thought they were the same.