Plate Clamp Working Load Limit 3 307 lb Attachment Type Load Ring with Chain Open Type Automatic Close Type Automatic Minimum Material Thickness 3/4 in Maximum Material Thickness 1 5/8 in Minimum Jaw Opening 3/4 in Maximum Jaw Opening 1 5/8 in Material Steel Clamp Type Plate Clamp Operation Horizontal Lift Vertical Lift Attachment Diameter 2 3/8 in Grip Type Teeth Overall Height 8 3/4 in Overall Width 6 in Overall Depth 3 1/4 in Standards ANSI B30.20