Positioning Plate/Action

[Yardarm103669107@AOL.COM]

In reference to the screws Horace was referring to:
They are called cap screws, and if you get 1/2" OD thread 7/8" face with a 
5/16" hex, then prepare the plate lag hole by drilling out about 1/2" down 
with a 7/16" bit, then thread the cap screws down and place the plate on 
them, you can go through the plate lag holes with a hex wrench and adjust 
height. Ideally, the cap screws should be milled so that the top face is only 
40-50 thousandths so that it will flush out on the soundboard. New, the cap 
screw head has a bevel which will open out the hole in the soundboard if not 
milled down. This is particularly true on Steinway with thick plate bosses 
which sit down practically on and sometimes in the soundboard. This idea, by 
the way, which I've been using for years for plate bearing setting along with 
bridge kerfing techniques, was originally from Nick Gravagne; see also his 
class at the Reno meeting on grinding plate bosses. 

Paul Revenko-Jones