Yeah Arnold E , If homebuilders could not use nyloc nuts to put in aircraft instruments that would be great. We have these things called instruments nuts now days. Saves about half hour taking out instruments. Or even cherry rivets to hold in radio racks, even better a certain factory build Czech aircraft that silastics the entire transponder rack in (no hardware). Or a home builder that used household electrical joiners through out his audio panel install.
I will never be out of a job it seems