Hargrave Hargrave 20301 H402, 400 Series C-Clamp, 0-Inch-2-Inch Jaw Opening, 2-Inch Throat Depth Drop Forged, Regular-Duty With Extra Deep Throat Improved Frame Design Allows For A Higher Proof Test, Greater Throat Depth, And Lower Overall Weight Acme Rolled Spindle Threads Provide Maximum Strength And Clamping Force