Ma rivets osindikizidwa, omwe amadziwikanso kuti ma rivets akhungu osindikizidwa, amagwiritsidwa ntchito ngati kusungitsa chisindikizo chopanda madzi kapena chopanda mpweya ndikofunikira. Nthawi zambiri amagwiritsidwa ntchito m'mafakitale monga zakuthambo, zamagalimoto, zam'madzi, ndi zina zomwe kuletsa kutuluka kwamadzi, mpweya, kapena zoyipitsa zina ndikofunikira. Ma rivets osindikizidwa amapangidwa kuti apereke mgwirizano wotetezeka komanso wotsekedwa, zomwe zimathandiza kupewa dzimbiri, kutuluka, komanso kulowetsa zinthu zakunja muzinthu zomangika.