Help Needed - Titan Tower

I've got a 2008 Nautique 226 with the Flight Control Titan Tower. I am now missing the bolt that goes through the tower leg into the aft hull bracket on the Starboard side of the boat. Nautique Parts has not been able to identify the part. Could I be the first person to lose a bolt in the water? The boat is currently unusable unless I remove the tower. I've attached pictures of what the bold on the Port side looks like. I could also use a replacement plastic piece as the one was cracked. Anyone know what bolt or where I can get these parts?