Quick-Adj Steel Bar Clamp, Medium Duty, Opening (In.) 12 In.In, Throat Depth (In.) 5 1/2In, Load Capacity (Lb.) 1300, Nominal Rail Size (In.) 1x15/32, Nominal Clamping Pressure 1300, Spindle Dia. (In.) 25/64, Pad Type Smooth, Swivel Type Yes, Swivel Pad (In.) 1-1/4, Screw Size (In.) 45/64x3/16, Max. Jaw Opening (In.) 12 In.In, Clamp Face (In.) 0, Bar Thickness (In.) 15/32, Bar Width (In.) 1, Bar Material Steel, Handle Length (In.) 4-23/32, Handle Material Steel, Bar Size (In.) 1x15/32