Beam Clamp Beam Clamp Type C-Clamp Beam Mount Location Bottom Clamp Length 1.75 in Clamp Material Malleable Iron Clamp Material Finish Zinc-Plated For Beam Shape/Type H-Beam For Threaded Rod Size 1/2 in Installation Torque 60 in-lb Load Capacity 440 lb Throat Depth 3/4 in For Maximum Beam Thickness 3/4 in Standards ANSI/MSS SP-69 Type 23 cUL Listed A-A-1192A Type 23 FM Approved MSS SP-58 Type 23 UL Listed WW-H-171-E Type 23