Stop loosing your nuts with the Locking T-Nuts. Order a set of four and give your board the re-vamp it needs. These locking T-Nuts are for all foil boards.   How it works:  - Open your newly purchased pack of four locking T-Nuts. - Place them in the tracks of your boards - Mount the foil mast like you would normally, lining up the t-nuts with the bolts how you normally would. - Carefully remove bolts and mast. Try not to nudge the t-nuts! - Here is where the magic happens. Carefully do the grub screws up one by one. - DO NOT OVER TIGHTEN! They only need to be done up enough to pinch the t-nut in place. - Repeat on all T-nuts! You are all done, now you will not loose these pesky little nuts any more. And even better they will always be in the perfect place!!!