Calling on anglers for hardware repurposing

[DemostiX]

Perusing the shelves in one of the many recreational fishing supply stores at the Jersey Shore, I'm amazed at the variety of hardware for attaching lures, flies, weights, etc to fishing line. All kinds of non-rusting swivels and snaps. These connectors would have been ignored when minimum line size for hmmkrs was 5-6mm. But now, some of the heaviest line hmmkrs use is 2mm, which would fit in many of these devices.

Who needs unrated mini-biners if some of these, smaller, lighter and cheaper fishing tools will do as well?

So: Any suggestions from anglers, with your knowledge of how these naughty bits are rated for strength, how easy they are to use, how reliable, etc? See some in your tackle box?

Note: I can see that some of these bits of fabricated of wire have points I would not want to risk tearing my fabric on when stuffing it.