10/15/2026
OFFICIAL STATEMENT - CHAIN PLATE UPGRADE
We bolt through with two shouldered 1/2” x 3” upper bolts through the old chain plate and through the thick bulwark.
As well we have a heavy-duty, jet-cut, custom-made backing plate from Alaskan Copper — 1/4” 316L stainless steel. That 1/4" backing plate is a load spreader, not just washers. It spreads the load into the hull and reduces point loading.
We have to tap the two lower bolts, since the inside is unreachable and glassed in. They are encapsulated. We refuse to grind and demolish our interior.
We dry-fit everything, then Loctite the nuts to the bolts.
This engineering is not a shortcut. It is the best possible design and an upgrade to external chain plates. External is visible — every bolt, every plate can be inspected and serviced. Unlike encapsulated plates, there is no hidden failure.
We ran our full engineering plan past The Yacht Rigger in St. Petersburg, FL - 200 14th Ave SE. They are a fully licensed and insured marine specialist shop for rigging, electrical, fabrication and hardware. They have 5 stars on Google Maps and they signed off on the concept.
We highly recommend this treatment to any yachtsman who is saddled with encapsulated chain plates.
Watch our next episode for the full story.