[pianotech] Knabe screw

[Ron Nossaman]

On 2/23/2013 4:51 PM, Arlie Rauch wrote:
> This circa 1887 Knabe has four unusual screws holding the action in
> place, but one is broken.  Does anyone know whether I might be able
> to obtain one somewhere?  See pictures.  The threaded portion of the
> broken one is in place and will have to be drilled out.

Arlie,
Gulbransen players had a couple of screws very like this on the stack, 
only longer. Take one down to your Ace Hardware (or equivalent), and buy 
a thumb screw to match, if the thread is of this earth. Get a nut that 
fits the thread too. Back home, screw the nut on and tighten it up 
against the thumb flair. Thread locker if you have some, and you have 
your replacement for a buck instead of handing over your favorite large 
denomination bill to a machinist to make one. Or buy three or four and 
replace the set. Splurge!
Ron N