Is é an graí tarraingthe ceann scáth a luaitear sa seam dall ná graí tarraingthe ceann cruinn nó graí tarraingthe ceann countersunk?

Tugtar graí tarraingthe cloigeann scátha freisin ar studs tarraingt ceann cruinn agus studs tarraing cinn uile.Tá imeall na graí tarraingthe ceann cuntarach ag dul anuas, agus tá an graí tarraingthe ceann cruinn in airde.

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