In wide-tolerance holes. Since the rivet can expand up to its own head diameter, accurate hole sizing or alignment is not necessary.

To pull sheets together. The extraordinary rivet tail expansion automatically effects superior clamp-up action on the parts being assembled.

Over a vast range of thicknesses. The “dubble-bubble” expansion feature offers the capability to fasten securely in both thick and thin grip ranges with a single length rivet. While providing a sealed stem. The rivet material flows both behind and in front of the mandrel insuring a positively retained and sealed stem.