Xi tfisser blind rivet jumper?

Ras tal-qbiż tar-rivet għomja: minħabba li r-rivet ma jdawwarx ir-ras tad-dwiefer, dan jikkawża li r-rivet jaqbeż ir-ras.

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