Pardon my terminology...I tipped my playfield back to work on it today and noticed a screw had fallen out of the bracket that holds in the right pivot pin "for lack of a better word" to the playfield. When I went to put the screw back in it seems as though the wood underneath is stripped. What is the best way to affix this pin securely back to the playfield? The same thing has happened to one of the front prop bars that are used to raise the playfield just a little.