Rolland Miller wrote: <snip> >.... If you do damage > the t[h]reads you can drill/retap the hole for a 3/8th inch bolt. Cut > off a section of the bolt the depth of the agraffe hole - drill/tap > in the center of the bolt section to accept an agraffe. I've never had the problem (knock on wood) but I wondered right away if a helicoil, such as those used to replace stripped stud or sparkplug threads in a cast-iron engine block would do the job. I don't know why it shouldn't, presuming they are available with the right combination of threads and hole sizes. It works the same way as the retapping/plugging-with-a-bolt/drilling/retapping scenario, only a lot less headache. I'm kind of surprised that no one sells them in piano supply catalogs. Any of you old hats ever heard of anyone using a helicoil, or any reason why not to? Tim Keenan Noteworthy Piano Service Terrace, BC
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