A screw popped out the top plate where the rudder attaches to the boat. I don't know the name of this part. It is the thing along the back of the boat Where the rudder attaches. It is an old style set up. I have the screw but when I tried to screw it in, it just spins, it is stripped. Can any help me figure out how to get this to stick in there? Do I need putty or an anchor for the screw? I am bummed, sitting on the shore with weekend of not sailing ahead of me!