How strong are those C-Stand spigot attached to the stand?

[analogs]

I had a look at my C-stands and noticed that the spigots are attached to the tubes with just one rivet that are not fully closed. I thought these would be built differently as they are meant to be for heavy duty use compared to standard light stands.

How much weight can these hold, and why aren't they closed with a lip? Do manufacturers weld these or glue them to it on top of the little rivet?

I can imagine that if a light was attached to it and the C-stand fell or bumped badly that this section would be the first to dislocate out?

Are people strengthening it themselves or leaving them as it is?

It seems like a weak area and I notice that all the C-stands I have seen are made this way?

 

[Razz16mm]

Those aren’t rivets. They are tubular spring steel pins. They are installed or removed with a punch. If the spigot is damaged it can easily be replaced. Much stronger than soft rivets.

 

[David W. Jones]

I thought these would be built differently as they are meant to be for heavy duty use compared to standard light stands.
How much weight can these hold

Most C-Stands are rated for a 22 pound load. The same as a Beefy Baby stand.
Going up to a Junior stand gets you a 30 - 55 pound load capacity depending on the model.
Combo stands give you anywhere from 60 - 90 pound load limit depending on the model.
Senior stands 88 - 100 pounds depending.
Crank stands can give you a 265 pound load limit.

 

[Razz16mm]

The only function of the pins is to retain the spigot in the tube. Except when hanging upside down there is no real weight load on them, but they would be good for at least 5 times the working load rating of the spigot and arm. Usually the aluminum spigot wears out and gets loose first.