I have a few solid non opening rv windows Removed from 1990s camper originally have square drive screws I usually replace with phillips screws for reinstall. They take #8 × 1/2 Approx 16x55 19x19 13x23 19x31 19x25 As removed need cleaning will have some original butyl to be cleaned off Use for sprinter van schoolie camper or even in your shed. some tinted and reflect Tinted