Abstract: A fin plug (10) for installation in a water craft, said fin plug (10) including: a first open cavity (20) adapted to receive a base portion (15) of a water craft fin (50); and, a resilient biasing rod (30) and a protruding member (35) cooperating with the biasing rod, said protruding member being adapted to abut the base portion (15) of said fin (50) when received in said first open cavity (20); wherein said biasing rod and protruding member are adapted to apply a force to the base portion of said fin to inhibit removal of said fin from said first open cavity.

Abstract: A securing arrangement for securing a water craft fin to a water craft having a fin plug, the fin plug having a first open cavity configured to receive a base portion (4018) of the water craft fin. The securing arrangement includes a resilient biasing rod (4030) and a protruding member (4035) cooperating with the biasing rod (4030). The protruding member (4035) is adapted to actuate when the base portion (4018) of the fin is inserted into the first open cavity of the fin plug so that the biasing rod (4030) and the protruding member (4035) inhibit removal of the fin from the first open cavity.

Abstract: A fin plug assembly, for a surfcraft, including: a fin plug including a flat upper portion having an external perimeter and top and bottom surfaces, at least one fin cavity for receiving a base element of a surfcraft fin extending inwardly from at least one opening in the top surface, a base portion extending from said bottom surface and surrounding said at least one fin cavity; and a high density foam body having an upper surface with a fin plug cavity in said upper surface and a continuous side wall; wherein the base portion of the fin plug is located within said fin plug cavity and said fin plug is firmly affixed to said high density foam body.

Abstract: A system for attaching fins (11) to surfboards and other surf craft utilizes fixing elements (12) embedded in the body of the board, these elements having slots (13) which receive tabs (18) extending from the end of the fin. The tabs are removably secured by grub screws (16) enabling fins to be removed for transport or upon damage.

Abstract: A system for attaching fins (11) to surfboards and other surf craft utilizes fixing elements (12) embedded in the body of the board, these elements having slots (13) which receive tabs (18) extending from the end of the fin. The tabs are removably secured by grub screws (16) enabling fins to be removed for transport or upon damage.

Abstract: A system for attaching fins (11) to surfboards and other surf craft utilizes fixing elements (12) embedded in the body of the board, these elements having slots (13) which receive tabs (18) extending from the end of the fin. The tabs are removably secured by grub screws (16) enabling fins to be removed for transport or upon damage.