Method of connecting two components

A method of connecting a first workpiece having a connection area with a first thickness to a second workpiece having a connection area with a second thickness smaller than said first thickness, said first workpiece having a preformed hole therethrough with a first, smaller section adjacent said second workpiece and a second, larger section remote from said second workpiece, said sections being separated by a step, said method comprising pressing a punch against the connection area of said second workpiece causing deformation of material from the second workpiece into said hole with a single press stroke and without cutting through said second workpiece, whereby material of the second workpiece is extruded through the small section and into the large section of said hole, positioning said first workpiece by means of a support member having a section shape complementary to said second hole section and extending into said hole to an extent such that said step is left unimpeded and said deformed material is extruded beyond said step but not beyond the second section of the hole.