Isho ukuthini i-blind rivet jumper?

I-blind rivet jumping head: ngoba i-rivet ayigoqi ikhanda lezipikili, izobangela ikhanda le-rivet jumping.

https://www.yukerivet.com/news/the-core-of-the-blind-rivet-is-not-completely-pulled-out-what-is-the-reason-for-the-fracture/