Description Product Reviews J-WPBC S1/4-20 Threaded Pressed Beam Clamp Provides a mounting base for quickly and easily fastening cable management hardware to an I-beam or girder Features: High-strength, zinc-plated pressed steel C type clamp fits flanges 1/8 up to 1/2 thick Serrated jaws for additional gripping power to securely clamp to flange Saves time as no specialty tools are required for installation Universal design allows for use with a multitude of cable management hardware x 20 threaded holes tapped on the back and bottom of clamp for 3/4 threaded rod Supplied with a pre-installed -20 x 1 combination Philips/slotted hex head machine screw Set screw tapped at an angle to firmly lock on to steel beam UL & CUL listed Application: Provides base support for -20 hanging rod, j hooks, bridle rings, conduit hangers, ceiling wire, and other cable management hardware Installation: Attaches to beam flange up to thick Secure with the included bolt using a 3/8 socket driver or Philips head screwdriver 0 Reviews Hide Reviews Product Reviews