CLAMPS Duck Bill Ground Clamp Tested to ASTM F855 Requirements High Quality Aluminum body with Bronze Tightening Screw Used with 5/8-11 UNC Threaded Ferrule 4 - Way Ground Clamp Used to Cascade (Connect) Multiple Equi-Potential Bond Mats Together Can Cascade 2, 3, or 4 Equi-Potential Bonds Mats per Clamp Kri-Tech Products Ltd. 1-877-788-3883 info@kri-tech.net Copyright © 2007, Kri-Tech Products Ltd. All Rights Reserved.