On the Berkut this was nothing short of a freaking genius idea. The C-channel aluminum stock will be held to the spar using a simple nut plate and #10 screw. The 2 AN8 bolt heads fit perfectly inside the 5" channel and will no longer require a socket for installation. PLUS I can now glass over the bottom access hole in the spar as the bolts wil now be in position permanently. I seriously believe this now allows the wing to be installed in 2 minutes flat!