M6 foil nuts for US rails, such as wing foil boards, SUP foil boards, and surf foil boards. The front and rear nuts are connected so that the screw pitch is 160mm. Pulling one side automatically positions the other, making assembly easy. Also, the nuts are lightly fixed to the rail, so their position does not shift even if the screws are removed. - With rubber stopper - Made of brass to prevent galling (seizure) with stainless steel screws - 8.1mm thick for a large effective screw length, making it less prone to stripping Screw pitches vary by manufacturer. Please check before purchasing. Custom sizes are also available, please consult in the comments. Shipping is only on weekdays. Please be aware if you are in a hurry. We also have other wing equipment such as harness hooks and belts for sale. See my listings here ⬇⬇⬇ #BCWorksウイングフォイル Harness belts and hooks are also ⬇⬇⬇ for sale ⬇⬇⬇. #BCWorksウイングフォイル If you are new to Mercari, you will receive "500 yen worth of points that can be used next time" by using the "referral code" below. ⬇⬇⬇ Referral code is here ⬇⬇⬇ WUADRG Wing foil Wing foil wingfoil foil