Dan-
When I bought my "87 Cruiser used in "98, both the starboard tank's forward cleats were loose. I cleaned out the holes and some very minor rot, filled the spaces with Marinetex epoxy, and jammed oversize sheet metal style stainless screws in the holes, using the hydraulic pressure of the screws to push the wet epoxy into the spaces. No problems after 7 years. None of the other cleats has ever loosened up. Good survey idea. Joe.