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Here is the link to the place I have bought metal couplings from. They aren't double couplings but it is easy to join a pair together with a short piece of suitable piano wire (or similar).
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I reamed mine out slightly and then pressed in brass inserts, reaming them out to 1/4" on one side (for the motor) and 4mm on the other (for the prop shaft). I enclosed the whole assembly, greased, into the cut off finger from a neoprene glove as a flexible boot. So far it's stayed intact with no grease loss. ๐
I also found them on the Manufacturer WEB page. These guys make some great stuff!!
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I've bought metal couplings that look the same as the one you have posted a picture of, I get them from ebay and they are definitely sent from the UK, usually arrive in a couple of days.
I'll dig out the link when I get back after our club's mid-week meeting at the lake.
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Hi
I am after three Double Universal Couplings - preferably metal to fit an M4 threaded shat (see Picture) - Looking for supplier based in the UK that has stock in and can offer next day delivery, I am tired of being offered goods from China and having to wait weeks to get them. Amazon says they have them in stock and then when you go to check out it is giving December as a delivery date.
Can anyone recommend anywhere please
Thanks
Pat
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