Black 20,7 Inch T8 PTFE Pull Screw 2mm/8mm Do Printer 3D Ender3 V2 : PTFE coating ma to release heat to heat and release to temperature It can withstand high temperature do 300 in a short time and generally can be used continuously in the range of 240260 Ma produce thermal action It can operate at freezing temperature without brittleness melts at high temperature PTFE coating ma low friction coefficient The friction coefficient varies, the charge slips, and the value x is in the range of 0,05-0,15 PTFE surface does not stick do and oil is easily glued during operation PTFE will hardly replace chemical corrosion and can protect parts from specialized type of chemical corrosion Specification: : PTFE Coated Pull Screw Length: 525mm/20,7 inch Screws: 2mm Guide screw: 8mm Black Fits do 3D Ender3 V2 printer parts contains: 1x pull screw with nut