Re: [Harp-L] Reedplate Screws (was Why are there no washers on a harp?)

[Winslow Yerxa <winslowyerxa@xxxxxxxxx>]

Don - 

The 1-72 is a fit that won't strip the original thread on a Lee Oskar
reedplate, found by experimenting. I haven't done a detailed analysis
on the thread characteristics (it can be done, but the detailed
information required takes some persistence to dig up).

I never have found a match for the Special 20 screw.

The MS screw is a close match for the American 0-80. I include 0-80
screws in the assembly kit with the MS Discrete Comb, as longer screws
are needed due to the extra thickness of the MS comb. Again, you can
re-use the MS screws after using the 0-80, without stripping the
original thread. This was important to me in providing screws with
Discrete Combs, as I wanted all reedplates to remain fully
interchangeable with no irreversible changes - a set of LO or MS
reedplates can be swapped back and forth between standard and MS combs
with absolutely no problems.

Winslow

--- Don Whitener <whitener@xxxxxxxxxx> wrote:

> Winslow, are the 1-72 screw and the LO reedplate screws really 
> equivalent, or just 'close enough' in these small sizes?  Also, do 
> you happen to know if there is there an American equivalent for the 
> Sp20 or MS series reedplate screws?  I have never checked if they and
> 
> the LO screws are the same size.
> 
> At 01:27 PM 11/30/2006, Winslow wrote:
> 
> >The American screw size that matches the metric diameter and thread
> in
> >the Lee Oskar reedplate screw is 1-72. This should be available from
> >houses like McMaster-Carr in brass or stainless steel in a variety
> of
> >lengths, head shapes, and slots, together with nuts.
> 
> 
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