• 1.  Replacement Agraffe on Korean Baldwin Hamilton

    Registered Piano Technician
    Posted 09-24-2023 12:59

    This is a C171 Hamilton.  I don't think it's a Samick, as there are no SG numbers on the action frame.  Daewoo?  Not Young Chang either.  I had some agraffes that looked the same as the original (arched top, not straight), and the threads seemed to work until I got it halfway in.  Gradually the thing got tighter and tighter, and obviously the threads didn't match.  Does anyone have ideas where I could get replacement(s)?  Does Baldwin have parts for these old Korean pianos? 

    Thanks in advance for any advice.

    Paul McCloud, RPT
    Accutone Piano Service

  • 2.  RE: Replacement Agraffe on Korean Baldwin Hamilton

    Posted 09-25-2023 21:27

    Paul, with the threads getting a good start to halfway-in, I would think you would consider using a 1/4" x 36 (or 7/32" X 36) tap to enable the agraffe to go in the rest of the way.  Bring the appropriate drill bit along, just in case, but it doesn't sound like you will need it. Or likely, am I missing something?  Regards, Norman 

    Norman Brickman
    Potomac Piano Service
    Potomac, Maryland
    (301) 983.9321

  • 3.  RE: Replacement Agraffe on Korean Baldwin Hamilton

    Registered Piano Technician
    Posted 09-28-2023 08:36


    Sounds to me like it's a metric thread. I have had similar experience with certain close metric threads on bolts and it seems to depend somewhat on how carefully the threads were cut (on either male or female side) as to how far in they go before encountering complete mismatch. Unfortunately I do not have a solution for you but it's good to know in advance if I encounter one of these.

    Peter Grey Piano Doctor 

    Peter Grey
    Stratham NH
    (603) 686-2395