[CAUT] Aluminum hammer rail (Screw hole) repair

[Jim Busby]

Ron,

I've had very little cause to do this repair either, until now. This
Yamaha G2 had 6 stripped holes w/ oversized screws. On the last
repinning a student stripped two out. Nowhere to go now... A machinist
friend showed me these and I couldn't believe how simple, fast and easy,
yet super strong/functional.

I wouldn't be surprised if the company has a 36tpi for S&S size and the
other. Have you looked for them?

Jim

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Ron Nossaman
Sent: Thursday, January 25, 2007 9:22 PM
To: College and University Technicians
Subject: Re: [CAUT] Aluminum hammer rail (Screw hole) repair



> Here's a way to repair stripped screw holes (Especially if an
oversized 
> screw strips) in an aluminum rail that takes less than a minute or
two. 
> "Helicoils" is what they are called. (See attached pic.)

Hi Jim,
I've been a fan of these things for some time. I haven't had a 
lot of need, but the idea and implementation is first rate. 
Now, if we could get these folks to make 36 tpi inserts that 
could be used with an appropriate tap for bringing odd size 
original agraffe studs back into standard supply house range, 
more piano techs would suddenly become fans.
Ron N