Countersunk holes for straps and join plates for the forward channels. (I’m waiting on delivery of a 120-degree #30 countersink to countersink the holes for the straps in the aft channels, as they are fastened with CS4-4 pulled rivets). Scuffed, cleaned and primed the interior surfaces of the forward channels, as well as both straps, both join plates and the F-732D angle.
