Beam Clamps Beam Clamps Provides a mounting base for quickly and easily fastening cable management hardware to an I-beam or girder. Spring Steel Beam Clamp for 1/8”-1/2″ FlangeWSSBC Details Pressed Beam Clamp for 1/2″ FlangeWPBC Details Malleable Iron Beam Clamp with 3/4″ MouthWMBC4T Details Malleable Iron Beam Clamp with 1-3/8” Wide MouthWMBC4T-WM Details Back to Attachments