Unsa pa ang matawag sa closed oblate head blind rivets?

Ang closed oblate head blind rivets matawag usab nga:

Closed flat round head blind rivets, closed flat round head pull rivets, closed flat round head pull rivets, closed flat round pull rivets.

https://www.yukerivet.com/news/what-are-the-surface-treatment-methods-for-anti-corrosion-of-closed-countersunk-head-blind-rivets/