Multi-Grip Blind Rivet - 3/16 x 3-6 - Dome Head - .188 - .375 Grip Range - Aluminum/Steel - 250 Pk, Titan Fasteners, Mfr#: CANAD6366BS

a rivet is a cylindrical, permanent mechanical fastener with a forged head used to fasten two separate materials. Generally made with a head at one end, the other end being hammered into a head after insertion.