These heavy-duty beam clamps are made for handling wide flange beam sections and steel plate girders. When lifting, these clamps grip the beam at three points, and when properly balanced and safely guided, the beam can be handled even if the clamp is slightly off center lengthwise. They come in a wide range of capacities, with jaw opening from 4" - 36" and Working Load Limits from 5T - 35T. These handy clamps eliminate the need for chokers, slings and spreader bars. A center plate works together with the gripping tongs, which means the heavier the beam the tighter the grip. The "NS" clamps have a recessed base to accept studs welded to the beam surface. Each clamp is individually proof-tested at 2 times the Working Load Limit with certification. RFID equipped.