Closed end / Sealed Truss head Aluminium Rivet with a Steel stem.
Diameter = 4.0mm
Shell length = 15.5mm
Grip range = 7.9-9.5 mm
The closed end rivet produces a seal that prevents passage of liquid or vapor at pressures up to 100 psi. The seal is possible thanks to a unique cup shaped design and configuration that prevents vapor or liquid from getting around or through the set rivet.