Saw an ad for a mid 80's bike this morning that has a seat post binder bolt that I have not come across before and was wondering if it could be a design issue if I would need replacement in the future. Standard Allen fitting on one end with a threaded flat head screw end on the other end. Allen head is labelled Pinarello. Is this an inferior design to the standard design? Could I replace this with a standard binder bolt or would a standard design not work here? Thank you for any assistance and info.