Patent ID: 7497752

Claim:
A method for releasable attachment of a fin of a water board, said method including: (a) providing at least a fin box embedded in said water board, said fin box comprising an elongate body with a recess longer than a length of a portion of the fin to be inserted into the recess, said recess open at a first surface if the elongate body, and said fin box further including a flange extending outwardly from the elongate body and proximate to the first surface, a buttress extending from the flange to a side of the elongate body and an angled threaded hole extending through the first surface, the buttress and the side of the elongate body, (b) withdrawing a screw provided in the angled threaded hole in said fin box to allow insertion of said portion of the fin into said recess, (c) adjusting the fin forward or aft in the recess to position the portion of the fin in the recess; (d) driving said screw into contact with the portion of the fin while said fin is in the recess.