You had asked were the fasteners (screws) go on each section of the hurricane hinge.
For the teardrop roof side of the hurricane hinge, you fasten down through the (nearly) horizontal flange.

For the hatch side of the hurricane hinge, you fasten through the (nearly) vertical flange of the hurricane hinge. In the picture below, I have my hatch on the workbench to attach the hinge. You can see the where the fasteners go on the hatch side of the hinge. I applied sealant to both flanges and used a board to clamp down the horizontal leg of the hurricane hinge until the sealant cured.
