Kartt 48mm Heavy Duty Cast Iron Swing Clamp - Captive Nut Spacer

The Kartt 48mm Heavy Duty Cast Iron Swing Clamp has a design flaw. In that it allows the ‘captive’ nut to move back in the casting. Meaning the clamp must be almost completely closed before the screw handle can engage the threads. This print spaces the ‘captive’ nut forwards into place allowing it to be easily engaged by the threaded handle.