Fan blade mounting system

A ceiling fan (10) is disclosed having a motor housing (11) suspended through a downrod (12). An electric motor (13) is mounted within the housing which drives an annular array of blade irons (14) each having a blade (15) mounted thereto. Each blade has three clearance or mounting hole (16) and a resilient annular grommet (17) is positioned within each mounting hole. Each blade iron (14) has a blade mounting portion (23) with a peripheral seat (23)′ and three blade fasteners (24). Each blade fastener is configured to pass through the fastener mounting hole and grommet. Each fastener has a neck (25) with an annular groove (26), and a head (27) having a diameter larger than that of the neck. The head is positioned directly adjacent the groove so that contact between the head and the grommet forces a portion of the grommet into the annular groove.