WILTON 14728 803, 800 Series C-Clamp with  0-Inch-3-Inch Jaw Opening and  1-15/16-Inch Throat Depth Drop-Forged, Regular-Duty With Standard-Throat Depth A Value Alternative For Clamping, Not Requiring As Much Throat Depth Or Clamping Pressure As A 400 Series Clamp Equipped With Wilton Perma-Pads And A Precision-Cut, Single-Lead Acme Thread