are no mounting holes on the E3D Hotend or Heatsink.
This little mounting plate allows you to mount the top of the E3D hotend to an aluminium plate of your choice.
This pairs especially well with the following Prusa i3 Bowden Extruder X-Axis Bracket.
This part is compatible with the E3D V6 Bowden Hotend.
Screw holes are M3.