Amazing! That’s new fastener terminology for me, but a starting point!
I was introduced to them as an alternative to tubular rivets by a local sadler (horse, not bike). I'm guessing there are other names for the same kind of thing, depending on application - no doubt someone on here will know?
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I've heard these called sex bolts.
@MrE started
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Amazing! That’s new fastener terminology for me, but a starting point!