At 17:49 +0100 10/7/08, John Delacour wrote: >...This is only on the S. Pianofortefabrik grands. They are bolts >without a slot that are screwed into a captive square nut. >Originally the nut was tightened on to the bolt and then covered up >so you can't get at it. I should have added that there are only two of these, in the front corners of the metal frame. JD
This PTG archive page provided courtesy of Moy Piano Service, LLC