The ambulera mutu kukoka stud wotchulidwa mu rivet wakhungu ndi kuzungulira mutu kukoka stud kapena countersunk mutu kukoka stud?

Zokokera pamutu wa umbrella zimatchedwanso zokokera pamutu wozungulira komanso zikopa zapamutu.Mphepete mwa kukoka mutu wa countersunk ndi pansi, ndipo mutu wozungulira wokokera umakhala mmwamba.

https://www.yukerivet.com/news/does-the-product-have-to-be-countersunk-to-evacuate-round-head-rivets/