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Old 26-09-2021, 09:41   #1
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Where can I find this porthole toggle bolt?

Where can I find this porthole toggle bolt?
Pictures here are of a porthole toggle bolt that snapped off my 1979 S2 11.0
I haven't been able to see what brand the portholes are, but at 42 years old, the part might be obsolete and it may not make a difference. As far as I can tell the threads are 1/4-20 the retaining pin hole is 0.185" and as you can see from the images, the narrow side is 0.255" and the wider side with the retaining pin hole is 0.380"

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Old 26-09-2021, 10:17   #2
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Re: Where can I find this porthole toggle bolt?

A machine shop can make you one.
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Old 26-09-2021, 10:31   #3
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Re: Where can I find this porthole toggle bolt?

These two look like worthy prospects, maybe someone at the respective suppliers could measure the roll pin for you. Wishing I had opening ports...

https://www.marinedepotdirect.com/ma...SABEgLbFvD_BwE

https://www.defender.com/product.jsp...164&id=1499932
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Old 26-09-2021, 10:33   #4
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Re: Where can I find this porthole toggle bolt?

Yes, and I can make for me too...but I'm sure someone has it off-the-shelf for a lot less than the time and effort of fabricating it.
Thanks for the suggestion, but it was not the answer to the question.
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Old 27-09-2021, 09:29   #5
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Re: Where can I find this porthole toggle bolt?

Pics of the actual port will help. Looks like Beckson in some of the Yacht World ads. You'll need to identify the brand. Beckson has their name cast into to plastic knob on their older product
Beckson https://www.beckson.com/component.html
Bomar/Pompanette https://pompanettellc.com/product-category/spare-parts/
Both companies still in business
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Old 27-09-2021, 09:33   #6
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Re: Where can I find this porthole toggle bolt?

My ‘79 11.0a has all black Beckson ports. Unless someone has replaced yours, they should be Beckson. They are still in business and still make the port.
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Old 27-09-2021, 10:42   #7
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Re: Where can I find this porthole toggle bolt?

Why not just pop a hole in the thumb tab on this -20 brass thumb screw and be done?

Brass Spade-Head Thumb Screw 1/4"-20 Thread Size, 1-1/2" Long
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Old 27-09-2021, 12:44   #8
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Re: Where can I find this porthole toggle bolt?

McMaster Carr will probably carry it or at least have one that you could drill yourself
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Old 27-09-2021, 12:58   #9
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Re: Where can I find this porthole toggle bolt?

I agree with the Beckson analysis.

Single fork, with pin axle. Lenses two forks into 3, two to a port. Fasteners either 2 bottom or 3 bottom and one each sides...
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