1/4"-20 Beam Clamp with Tapped Hole - Electro-Galvanized
Conduit Hanger with Beam Clamp;pipe Support Bracket Clamp;Cable Clamp for Pipe;Cable Hangers for Wire;Used for Cable Pipe Clamps for Pipes Installed on The Edge of I-beam(8Pcs) (1-1/4" 32mm) - Amazon.com