Forgefix aluminium dome head pop rivets forgefix 100riv408 the forgefix dome head rivet has a steel plated stem and aluminium head which provides a neat appearance with a low profile this rivet is the most versatile and commonly specified head style the dome head has a diameter double that of the rivet body providing more than sufficient bearing surface to retain all but the extremely soft or brittle materials the rivet assembly is inserted into a hole drilled through the parts to be joine