Square and screws for US Box double hydrofoil (x4)

This set includes four squares and four screws suitable for screwing onto a double US Box to install a hydrofoil on a board. These components are made of stainless steel for greater resistance to water, sand and salt. The screwing system requires a 4mm wrench, but no screwdriver for ease of use. These 6mm squares and screws are standard to fit any US Box and any type of hydrofoil with classic plate mounting.