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This is a pivot point on a linkage in my coffee table. It appears to be a rivet with a tail that was pressed with a cross-shaped punch to widen it. I haven't see something like this before. Is there a name for this? What is the benefit of cross-punching it?enter image description here

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It was hit with a cross-shaped punch to get that side or head to expand.

Usually done with a single blow for speed and low cost. Other choices can be nuts and bolts with nylock nuts so they don’t come loose easily.

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  • $\begingroup$ also called staking $\endgroup$
    – fred_dot_u
    Mar 19 at 13:21

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