Arrow Fastener RLA3/16 Long Aluminum 3/16-Inch Rivets, 12-Pack Ideal for use on a variety of materials 3/16-inch (5mm) diameter, perfect for heavy-duty jobs Grip range for up to 1/2-inch (12mm) thickness 12 rivets included per pack Designed for use with Arrow model RH200S, RHT300, and RL100S