GooDeal 50Pcs Front Fender Push-Type Retainer Clips 91501-S04-003 for Honda Acura The Rivet expands in the hole as the drive pin is pushed inwards, locking the assembly firmly into place. These fasteners are best fitted using the Expansion Drive Rivet Tools. Light weight and excellent insulation, they can be used on buses, trains, planes, truck, caravans and cars. Total Length: 16mm/ 0.6 inches.