Our Beam Clamps are reliable and rugged, made of an all steel construction that is lightweight and durable. Light-Weight, Reliable and Super-Rugged. All Steel Construction Fits securely on a wide range of flange widths and beam sizes, with a built-in suspension bar that facilitates close mounting. Clamp-Jaw Design reduces flange stress by distributing the load away from the flange edge. For Permanent or Temporary Mounting.