The Unimatic® blind rivet system is a general purpose blind rivet for aerospace applications. The bulbed blind head, mecahanically-locked spindle and unique hole-filling features provide higher reliability and strength than comparable blind rivets. This system meets or exceeds all of the rigorous design and performance requirements detailed in NAS1900, NAS1919 and NAS1921 speciciations. The simplified single action installation of these blind rivets permits the use of lightweight, reliable installation tools. The all-aluminum version of this system provides extremely lightweight high performance, while the Monel® and stainless steel versions of this system provide high strength performance even at elevated temperatures, as well as superb corrosion resistance.