1750sr steering wheel replacement

[Mborth]

Hi all, I have a 1750sr 2003 that has a gummy sticky steering wheel. I would like to replace it. I have attached two pictures of what I have. Looking online I see a lot of boat steering wheels but most say 3/4 thread. I’m assuming the screw in the center of my picture is the thread. I see it is 1/2. Any insights on what I should look for.

Thanks in advance