Ko te umbrella head pull stud i whakahuahia i roto i te rivet matapo he mea porowhita mahunga kume tanga, he countersunk head pull stud?

Ka kiia hoki ko nga tiu kume mahunga o te mahunga he porowhita he mahunga kumea me te mahunga kume paraharaha.Kei te whakararo te niao o te tiu kume mahunga countersunk, kei te whakarunga te tiu kume mahunga porowhita.

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