Hi, Terry: I went with the largest carriage bolt I could get into the plate hole without drilling the plate - that might have been 3/8". I use a thick oversize washer on the plate side that grabs the plate - I think it a 1/2" washer. Sometimes I have to file an edge of the washer if there is plate or tuning pin interference. This is particularly true when you have to use a screw hole which is not along the upper plate flange. Thanks for the assurance about lunch - I was mortified, as you can tell. But you guys were really great to hang out with - hope to see you again! Bill Shull << Hi Bill. Thanks for the input. No, I have not done this repair yet. The piece of hardwood for the carriage bolt stability sounds like a winner. Ron N. suggested using 3/8" dia. bolts. The 8 counter-sunk-headed plate screws along the top of the plate that I will be replacing with the thru-bolts were 5/16" dia. Do you think the nut on the plate side of the carriage bolt will sit alright covering the counter-sunk feature in the plate? Oh, and hey, lunch was cool! Terry Farrell Piano Tuning & Service Tampa, Florida mfarrel2@tampabay.rr.com >>
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