Re: Teak Deck Replacement with Nonskid
I would remove the turnbuckle and then build it up 1/2" with some G10 with a slot for the chainplate. Size the G10 to the size of the cover plate at the top and wider at the bottom. Epoxy it in place. Add sealant around the slot and compress it with the cover plate. This will prevent water from pooling at the chainplate base. Like the pics below.
Butyl would be my sealant choice.
Living aboard in Victoria Harbour