Replacing Pivot Bolt on 22 Balboa ? Where to Buy ?

[SurfnRide]

I can't seem to find a 5/8th inch pivot bolt for a swing keel boat online. I'm new to the sailing world so my knowledge of parts places is limited to west marine right now.

BTW if anyone else has a Balboa do you know if a 5/8th is the correct size for the pivot bolt? I read somewhere else is might be a 1/2 inch but that seems awfully small to support a 600lb keel.

I'm going to have to borrow a buddy's trailer to get it out of the slip so I don't want to waste his time with multiple trips to the parts store.

Thanks!

P.S. Any part store suggestions are welcome for future issues too! I'm in California so no need to suggest places in Perth.

[TheRowdyGang]

It's 2023 now and we have a 1970 Balboa and are working on refurbishing the keel.
How did you get the bolt out?