Nick Gravagne wrote: > Hello All, > > Agraffes recently removed from a Boston M&H BB (#35000 circa 1927) are > dimensioned at 0.280" stud (includes threads), and near as I can tell the > TPI is metric at 0.75 but I don't take this to be accurate. Still, I > couldn't get the gage's 32 or 36 TPI to line up right with the threads. They're 34tpi. Been there. > The standard 1/4" stud just falls in the hole. > > A prior tech removed the originals and "cleaned" them up by sand blasting, > or so it seems by the slightly pitted appearance; otherwise nothing is bent > or weird looking. The string holes have not been touched or redressed. > > Pianotek does not offer this size (that I can see from the catalog), neither > does Schaff. The idea of plugging and re-tapping for standard agraffes is, > of course, possible but relatively time consuming, and there is no room for > error. > > Anyone replaced these recently, and if so with what? Any reconditioning > anecdotes worth sharing? > > Thanks > > Nick Gravagne, RPT Word was, last time this came up about eight years ago, that Joel Rappaport had someone making up a bunch of these for direct replacement. Haven't heard a word since. Lacking anything better that I know of, I'd probably tap them out and sleeve them back down to a standard size with brass. Very much a pain, but it's a good fix. Ron N
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