Stus-List Keel bolt question

Rob Ball rob at
Sun Mar 17 09:21:23 EDT 2019

Those square plates are steel washers to spread the load - the Wider the better. They were often mild steel (to cut costs). 
Admittedly they block water. The best solution is to fill in between them - which of course isn’t that much fun . . . . . 
Cheers,   Rob Ball

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