A tight seal is the hallmark of the Huck Magna-Tite®. This water-resistant aluminum rivet fastener is ideal for use within oversized holes and repair applications. It has a unique embedded sealant applied between the pin and the sleeve. This sealant oozes into the joint during installation, completely filling any gap, and ensuring water-resistance. From Howmet Fastening Systems. Call 1-800-388-4825 for more information or visit https://www.hfsindustrial.com