birambuye
Tri Bulb Rivets ni ubwoko bwihariye bwa rivet.Bakunze kuvugwa nkibisasu biturika bitewe nuburyo byaguka, kandi na tri tite, tb tite, na olempike.Iyi mirongo ifite ibice bitatu byaciwe mumubiri wa rivet.Bashyizweho cyane nka pop rivet, bakoresheje riveter kugirango bakurure mandel yerekeza ku ngofero.