FLHurricane.com: Hardware for hurricane panels

Day before Christmas I made the plunge and ordered .050 corrugated aluminum hurricane panels to cover each window in my house.

Now my concern/questions is mounting hardware.

Due to concrete sills at the bottom of my window openings (concrete block construction), I will be mounitng the panels directly to the concrete block and horrizontally.

Does nyone have any idea if female panelmate anchors will be ok? I have no idea if the block cells around my windows are filled or not. House is three years old (Lake County). The panelmate may only be imbedded in concrete about 3/4 inch before punching into a possibly open cell.

I do not want the male panelmates do to possibility of injury from the threads protruding from the block - besides it looks ugly.

If I do puch into an open cell would adding epoxy into the hole suffice?

Anyone have any leads on places that sell the panelmates and sidewalk bolts at a decent discount?

Thanks in advance
EGeary
Clermont, Fl