A beam clamp providing for a positive attachment to I-beams, H-beams, T-bars, pairs of conventional angles, bulb angles, channels, plates and other similar structural shapes wherein the beam clamp includes a pair of clamping hooks incorporated into opposing clamp bodies that capture an attached elongated rectangular, round or other shape. The shapes are secured against the structure using one or more bolt with nut assemblies to pull the halves together towards each other and the attached member and towards the structure.