Halex 2-in Rigid / IMC Galvanized Steel Two-hole Strap Conduit Fittings (2-Pack) in the Conduit Fittings department at Lowes.com
Universal Strut Clamp Steel Conduit Fittings 1/2 Inch To 4 Inch Electro Galvanized Surface Treatment
Amazon.com: Supply Giant GMCR0100-5 Galvanized Malleable Cross Fitting Four Way Threaded Pipe Connector, Connects to 1 Inch (Pack of 5) : Everything Else