A simple replacement for you lost or damaged prop nut. This is a universal part that fits all MasterCraft, Malibu, Supra, Moomba, Gekko, Correct Craft, Nautique and Sanger boats with a 1" drive shaft.
On the water repairs often mean lost parts. Don't let a small accident take you off the water, keep a spare prop nut with your spare prop. Think of it like fishing with a net, if you have it you won't need it. Leave home without it and you'll end up all wet!