A clamping system and method of clamping a rod includes a single knob coupled to a control screw. The single knob can increase or decrease a clamping force on the control screw. A clamp housing includes a control screw channel, wherein the control screw is disposed in the screw channel. A rod channel is capable of receiving a rod. A cleat channel extends into the rod channel. A cleat block has a clamping surface capable of entering at least a portion of the rod channel as the clamping force is increased on the cleat block.
