RS PRO Aluminium Blind Rivet is a 4.8mm diameter fastening component designed for permanent joining of sheet materials in the 5.5-7.5mm thickness range. Installation requires a blind rivet tool and creates a secure mechanical bond without access to the rear side. Critical verification: confirm material compatibility (aluminium body suitable for non-structural or corrosion-resistant applications) and validate actual hole diameter matches 4.9mm specification to prevent rivet slip.