Abstract: A flagpole having a shaft assembly comprising first and second ends. The first end defines a head. Positioned between the head and the second end is a channel. A snap cap has an exterior sidewall with a top face and an exterior bottom edge. An interior sidewall extends from the top face to an interior bottom wall. The interior bottom wall comprises an edge that protrudes inwardly from the interior sidewall. At least two notches are defined at the top face. The at least two notches extend along the interior sidewall to the interior bottom wall. A clamp assembly has a shaft member with third and fourth ends. The third end extends from the second end. Extending from the fourth end is a connector section that terminates as a clamp. In use, the flagpole is mounted onto a tubular section of vessel to display a flag mounted thereon.