I just finished planing the shear clamps on my Chesapeake 17 and I'm ready to install the deck beam and foot braces. What I don't understand is whether or not the screws will be left exposed on the outside, or if they are ultimately counter-sunk and buried under the deck fiberglass which will hang down over the hull. Can anyone clarify? The plastic foot braces that came with the kit contain steel screws and the deck beam screws are brass. Are the foor brace screws covered and the deck beam srews left exposed?