100 PCS 3D Printer UM2 Extruder Spring [11mm x 17mm]

Description:
100 PCS 3D Printer Ultimaker2 Extruder Spring [11mm x 17mm] package contains 100 pieces of a stainless steel spring with 17mm length and 17mm diameter, which is specialized for Ultimaker2 extrusion head of the 3D printers. 
The UM extruder series is so designed that easily can be maintained, due to easily disassembling and reassembling, also they have an adjustable pressure of molten filament push out. This spring is used in the hot end of the UM2 extruder. The stainless steel material is very strong, stable, corrosion resistance, and durable, so this spring has high reliability and long service life.

Features:
Height: 17mm
Outer diameter: 11mm
Inner Diameter: 9mm
Wire diameter: 1mm
Number of turns: 7
Material: Stainless steel
Compatible with UM2 Extruder Hotend

Package include:
100 x Extruder Spring