forgive me for contributing in the land of the F18s... but here is my suggestion. my boat has HMWPE squares as backing plates for hardware using large sheet metal SS screws. Works well.
The Dakine footstraps are nice but don't last in the sun at all. Sew up some nice ones yourself using polyester webbing. burn a hole in either end and put the screws through the holes using a washer. Costs about 2 dollars in materials. might create a cleaner break too when you break your foot off.