You will need the adapter kit also which is about 5 or 6 bucks. You will need to know your crankshaft thread size to get the right one. Its probably 1/4"-28, but I don't know for sure. If you order from tower, they can tell you.
I have used aluminum spinners and have found that no matter which brand I buy, I always have to cut the bolt that holds the spinner on.
My advice to you (I know you didn't ask) is to save that money and buy another plastic spinner or aluminum prop nut. Aluminum spinners look nice, but they are too expensive to learn to fly with- one prop strike can bend them into uselessness. I learned the hard way.
Jason