I'm having trouble finding suitable woodscrews for replacing those that hold the plates on to my ediophone. They go through the plate or thumbstrap, down through a wooden post (post is about 13mm long) and then through - and out the other side even - the wooden plate through which all the valve holes are cut out.. Multiple repairs and over the years (all of which require these screws to be removed), and some rusting on the screws has resulted in damage to the heads. The "slot" at the top of the screws are now damaged and so its increasiungly difficult to remove and replace them. I suspect the use of the "wrong size" of screwdriver has also contributed (I have no idea what the "right size" would be... presumably the one Mr. Lachenal used in his workshop ).
Anybody got any ideas where I can get x4 replacement screws? My internet searches have been unsuccessful - but maybe I am not using the right keywords.
Approx
1 mm diameter
25 mm long
thread on the bottom 12 mm
countersunk
I would also like to replace the shorter screws holding the thumbstrap and finger unit in place.
thank you
Gail