Albert de Boer asked about odd sized screws.  My best source over the
years has been American Piano Supply Co., 242 S. Parkway, Clifton, NJ
07014, tel.: 973-777-3600.  They carry a range from 1/4-1 on up, many by
1/8 inch increments, in flat head, round and oval, steel, chrome plated
and brass.  I have not ordered screws from them for a year or more and
they were recently purchased by Schaff, another large piano parts
supplier.  I hope they still carry a large supply, but I don't know for
sure.

Jeff Davis