... stud wedge anchors, stud anchor system, heavy duty concrete anchors.2. Material: carbon steel, stainless steel3. ... unit. The carbon steel rod is threaded for a portion of its length. The extreme ... has a necked down diameter, which runs for a short distance, at the end of ... -duty into solid concrete. Such as metal structures, profiles, floor, bearing plates, brackets, railings, walls, machines, beams, ...