Plate Clamp, Working Load Limit 1,000 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 Vertical Lift, Attachment Diameter 2 3/8 in, Grip Type Teeth, Overall Height 11 1/4 in, Overall Width 2 1/2 in, Overall Depth 4 5/8 in, Standards ASME BTH-1.