RedactedNarrative: Operator was operating his vessel on Tellico Lake in Loudon County, TN in the vacinity of the Tellico Village Yacht Club.  He had just let a passenger off of the vessel at the courtesy dock of the Yacht Club and was pulling away from the dock when the starbord pontoon on the vessel struck a protruding bolt on the dock.  The bolt punctured the pontoon as well as damaging a cleat on the vessel.  The damage was all above the waterline and caused no immediate threat.  None of the occupants were injured.