square and screw for SUP or surf fin


This product is constituted of a square and a screw adapted for US Box to install a fin on a surf or stand up paddle board. These components are made with inox to guarantee a better resistance to water, sand and salt. The tightening system is manual so it does not require a screwdriver and guarantees an easy use. These square and screw are respecting the norms of US Box and can be used for any type of board that uses this system and any type of fin using this system too.

SKU: SU19-CARRE-VIS Category:


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