I just cut and sewed some covers for the hatches on my 1979 hunter 30 and am not sure how I should attach them. If the hatches were wood framed, I would install snaps on the covers and frames, but they are aluminum. I hesitate to drill holes in the deck for snaps until I could find out what others do. I also considered sewing some strips of velcro on the edges of the covers and applying the opposing strips on the boat with epoxy. any suggestions?