http://tinyurl.com/o25xlvr
1 Pcs M6 X 26.5mm Nozzle Throat for 3d Printer Extruder 1.75mm Filament Mk8 Makerbot Reprap
Condition: 100% brand new
Outer thread: M6
Total Length: 26.5mm
Screw Length: M6, 18mm+5mm
Inner Diameter: 2mm