I bought seven off of EBay solid cast Stainless Steel. They had/have two threaded rods protruding from the base. They came with nylock nuts and a large backing plate. Very solid! I wasn't trusting the ones mounted with screws, and wanted them to withstand abuse.
I just added two more at the front of the cuddy on either side. The studs were not long enough so I unscrewed the threaded rods and used Stainless bolts to attach them. Worked great, very solid.
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