Greetings All! Just purchased a Cooey Model 82 for my two grandsons. The only drawbacks are the sight protector screw and band screw are really chewed up and holding on only by a prayer. Does anyone know the true screw size and thread? Other than length are they supposed to be the same TPI-wise or are they metric? Mine are so worn ((threads AND my eyes!)) that I can't get a good match with my gages.