My 1999 Hunter 340 has six YS 10" 2-hole cleats (3 on each side). The stern cleats have thru-bolts attached to nuts with lock washers and are readily accessible from the cockpit lazarettes, making for easy removal. The mid-ship cleats are another story. They also appear to be mounted via thru bolts and nuts, because I'm able to turn the screws from the deck but they will not come off, they keep spinning. So I'm trying to figure out how to access the nuts. I tried to access the port cleat from inside the galley pantry, but the plywood sides are in the way. Same situation trying to access from the microwave enclosure. Before I start cutting plywood, does anyone know the proper way to access the nuts? Thank you all!