O a isi igoa o lo'o i ai mo rivets tauaso leai ni ulu?

E tele igoa mo rivets tauaso e leai ni ulu, e pei o: rivets countersunk ulu itu lua, rivets e leai ni 'ai, rivets tauaso, ma rivets lua gutu.

https://www.yukerivet.com/news/do-countersunk-head-rivets-require-countersunk-holes/