Abstract: Boat cover fastening system for aquatic craft utilizing a rail having a continuous securement channel along its length which receives a plurality of cover mounted flexible spring clips distributed along the periphery of the boat cover. An alternate embodiment discloses a flexible spring clip having members of different flexibilities.

Abstract: Boat cover fastening system for aquatic craft utilizing a rail having a continuous securement channel along its length which receives a plurality of cover mounted flexible spring clips distributed along the periphery of the boat cover.

Abstract: A collapsible bimini sun top frame for a pontoon boat including square aluminum tubes and extruded aluminum fittings securing the frame to the railings of the pontoon boat. The frame supports a soft top of water resistant canvas or other material for protection from sun and rain in an open position, and is collapsible to a storage position. The soft top can be secured, such as with hook and loop fasteners, to the collapsible frame and, with appropriate fasteners, to the railings of the pontoon boat. The extruded fittings also can be utilized with other frames for other types of boats, such as speed boats, water skiing boats, or any other type of structure requiring a frame.