Features Westward® Carriage C-clamp features cast-iron body construction with a Gray powder-coated finish for corrosion resistance. With a nickel-plated steel spindle and a steel swivel pad. Regular-duty. Max. Opening / 6 in Throat Depth / 2 3/4 in Clamping Pressure / 2,450 lb Body Material / Cast Iron Duty Rating / Regular Duty Throat Shape / Standard Anvil Shape / Flat Body Color / Gray Min. Opening / 0 in Body Finish / Powder Coated Swivel Pad / Yes Spindle Material / Steel Spindle Finish / Nickel Plated