2 Pcs, 1 In. Parallel Beam Conduit Clamp, Zinc Plated Iron Used to Mount 1In Emt, Rigid, Or Imc Conduits Parallel to Beam, Channel & Angle Supports - Walmart.com
I-Beam Clamp Mounting Bars - Strong Poles
610 Beam Clamp: Connects to I Beam | Star Hanger Systems
3/4" Pipe Clamp with Base
BIS Strut Stainless Steel Beam Clamp - Walraven International
Center Load Beam Clamp
Cam Clamp Mechanism (1/4-20 Thread) - Lee Valley Tools