Titanium Hydrofoil kit 4 nuts &v 4 screws M8 x 30mmFoilite M8 Titanium Hydrofoil Hardware Set 4 Track Nuts and 4 M8 Screws These are Replacement M8 Titanuim Track Nuts and M8 Mounting Screws for use on any hydrofoil that uses the M8 T nut including Naish, and others. Why Titanium: Titanium is highly valued for its high tensile strength, as well as its light weight, corrosion resistance, and ability to withstand extreme temperatures. It's as strong as steel but 45% lighter giving it a greater Strength