You can also check with Tru-Turn (http://www.tru-turn.com) and see if they have an off the shelf spinner to fit. They have some wide blade cuts available. If they don't have it you can ask for a custom cut for a small extra charge. They are perfectly balanced too boot. I've used them for a number of my large or wide props and love them. You could also use the dubro safety nut which would work. A lot depends on how much you want to spend and what look is important to you for the particular application