Kodi kusiyana pakati pa ma rivets a countersunk head blind ndi ma rivets a round head blind ndi kotani?

Ma rivets ozungulira mutu safuna kusinthidwa, amatuluka pamwamba pambuyo pa kusinthidwa, pomwe ma rivets ozungulira mutu ayenera kusinthidwa ndi madigiri 120, ndipo adzakhala pamalo omwewo monga mbaleyo ikasinthidwa.