This is getting complicated. It didn't look complicated on his kayak. He used 2 fasteners with pins per hatch, one on each side. The pin went through the hatch cover (must have been towards the edge - outside the seal - so it was waterproof) By turning the pin a quarter turn, it hooked into a little receptacle with a small wire that was screwed into the deck, next to the hatch, but under the hatch cover. I will try to draw what I remember (this may not even be right!)

Courtney

: Dale--

: I have to agree with you. I've thought long and hard about how to use Dzus
: fasteners to hold a hatch on. Their holding ability is great. (They hold
: on race car body panels) But I can't see an easy way to keep the water
: out. Maybe you could run them into blind holes around the actual opening
: and pull the hatch down onto an inner gasket that would form the
: watertight seal. Also you need a special tool to open them.