Plate Clamp, Working Load Limit 2,000 lb, Attachment Type Load Ring, Open Type Manual, Close Type Manual with Lock, Minimum Material Thickness 0 in, Maximum Material Thickness 3/4 in, Minimum Jaw Opening 0 in, Maximum Jaw Opening 3/4 in, Material Steel, Clamp Type Plate Clamp, Operation Horizontal Lift, Vertical Lift, Attachment Diameter 2 1/2 in, Grip Type Teeth, Overall Height 13 1/2 in, Overall Width 2 7/8 in, Overall Depth 6 1/2 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.