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Hello

1983 boston whaler outrage 18

Would someone know what is on the backside of the screws /bolts that holds down the bow chock/bollard. ?? It looks like a bolt.
Specialty marine has a stainless steel one available that I intend to purchase. The one on there now is broken where it "waterfalls"
over the rub rail (leaving a jagged edge ) I really want to use the same holes. We are going to try an impact screwdriver.

thanks

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The Sampson Post is attached with fasteners that thread into an aluminum plate that is embedded in the fiberglass.

Over the years, there is corrosion and the screws tend to fuse to the plate. Removing the screws is extremely difficult. Often the head snaps and you will have to drill them out, retap and use a larger screw.

I would be cautious of an aftermarket part having the exact dimensions.

It may be more practical to grind the edge and leave in place.

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Hello,

well, it is so great to know what i am dealing with!!! I have already jumped off the cliff and broke three bolts only saving one.
My plan now is just what you said . Drill out the old SS screws and retap to larger size, not looking forward to it.

Frustrating!!


respectfully,
Richard

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If you go back with SS on aluminum there's a product called TefGel that has helped prevent that.

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I thought about buying the Specialty one but with an 1986 I assumed it would not "bolt right up" due to age and corrosion. IMine is fine, I just don't like the look of marinium which I can understand why they used it but it looks so cheap.

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I would try to drill and tap for the same size bolt as the original, I believe 1/4" x 20. If you are careful on centering your drill, you should be fine. Punch the center of the broken bolt before drilling, should work.