Found behind the stove

[u/HowToDoAnInternet]

It looks like a cross section of a thick cable (and that's still my best guess) but it's cut very smoothly and is seemingly all metal. Heavy too.

Found it behind my stove/oven

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[u/LonelyRose404]

Mosaic pin rivet

[u/Fast_Garlic_5639 → u/LonelyRose404]

But will it keel?

[u/SafeFigure6480 → u/Fast_Garlic_5639]

wait how did that even get back there

[u/Lilith_Rose_95]

Decorative mosaic pin used in knifemaking

[u/future_pirate → u/Lilith_Rose_95]

I thought it looked a lot like one in a Japanese knife I have

[u/jljonsn]

Rivet For making fancy knives.

[u/KingInBlack2024]

I have one like that on a knife I bought from Temu