Terminal connectors

Jan 11, 2014
13,070
Sabre 362 113 Fair Haven, NY
I was asking about the fasteners , not the connectors . I've tried a variety of different types metals of .
Corrosions from different metals seems to accelerate the process . I've tried stainless ,zinc brass screws
Fasteners in general? or for a specific purpose? This thread was about electrical connectors.

To the extent possible I only use 316 or 316L fasteners.
 
Jan 11, 2014
13,070
Sabre 362 113 Fair Haven, NY
Fasteners for making electrical connections
That's a little vague. For terminal strips or similar connections use the screw that came with the device. Spraying the device with Boeshield or another anti-corrosion compound, should prevent or reduce corrosion.

On batteries it is ok to use SS nylon nuts and washers so long as there is no SS between the connectors and the bottom connector and the battery.

In 40 years of freshwater sailing on Lake Ontario, I've never had an issue with corrosion on the electrical connections. Even with 2 years in saltwater, I've not had an issue with corrosion on the connectors.
 
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jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
23,392
CAL 35 Cruiser #21 moored EVERETT WA
I use a spray of Corrosion Block to slow down the corrosion.
 
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colemj

.
Jul 13, 2004
678
Dolphin Catamaran Dolphin 460 Mystic, CT
That is tin plated, and the black tin oxide is what happens when it has been exposed to salt water. So it is normal. Cut one and see if it has copper inside. If so, then it is tinned copper. Whether the crimp fits your die correctly and forms a tight crimp is another factor. If it does, then you have good terminals.

Mark
 
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JBP-PA

.
Apr 29, 2022
641
Jeanneau Tonic 23 Erie, PA
Marine How To says

"NOTE:When choosing crimp terminals I would urge you to buy from companies with a reputation to uphold and a long history for quality. If you buy from companies such as AMP/Tyco, Molex, FTZ, Burndy, Thomas & Betts (T&B), *3M, Ancor etc. and you will get better quality terminals than the cheap no-name junk that has infiltrated the country over the last 20 years or so."

But I have used the cheap ones with no apparent failings. The cheap ones seem to use thinner metal and maybe the strength is less, but I never rely on the crimp for strain. Definitely look for tinned solid copper.
 
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