Arrow Fastener RLA1/8 Long Aluminum 1/8-Inch Rivets, 15-Count Ideal for use on a variety of materials 1/8-inch (5mm) diameter, perfect for heavy-duty jobs Grip range for up to 1/2-inch (12mm) thickness Designed for use with Arrow model RH200S, RHT300, and RL100S 12 rivets included per pack