Hi I need some help with my 1910 Ithaca flues. The stock has been damaged on the right side at the top where it meets the receiver. It has had a chip come off about an inch long and a quarter inch deep. The problem I have run into is the screw under the release hinge is striped. I have tried putting leverage under the head of the screw while trying to turn it and it still will not come out. If anyone has come across this before and has any suggestion please let me know thanks.