Hydrofoil locking M8 T Nuts Stainless steel Foil fin 9mm tracks x4

4 Foiling Hydrofoil locking T Nuts Stainless steel Foil fin 9mm tracks. Compatible with sabfoil M8 stainless steel double holes. These T-Nuts are ready for an m8 bolt and come with a stainless steel 2mm screw to lock the t-nuts in place. The stainless steel foil T Nuts fit the slingshot, Sabfoil, standard 9mm euro fin boxes, or apple tree boards we have tried so far. Once these foiling T-nuts are tightened, it keeps the track nuts in place, so you do not waste time trying to locate the nuts or lose them.