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 1/4-20 Malleable Beam ClampWMBC4T Details 1/4-20 Malleable Beam Clamp, WideWMBC4T-WM Details Back to Attachments