Plate Clamp, Working Load Limit 6,000 lb, Attachment Type Load Ring with Chain, Open Type Manual, Close Type Manual, Minimum Material Thickness 0 in, Maximum Material Thickness 2 in, Minimum Jaw Opening 0 in, Maximum Jaw Opening 2 in, Material Steel, Clamp Type Plate Clamp, Operation Vertical Lift with 180 Degrees Flip, Attachment Diameter 3 in, Grip Type Teeth, Overall Height 21 3/8 in, Overall Width 4 1/8 in, Overall Depth 10 7/8 in, Standards ASME BTH-1 Clamp is equipped with a safety mechanism, ensuring the clamp does not slip when lifting force is applied and when load is being lowered. 300% overload factory tested.