Ikea Lack table top passthrough

This is a hollow bolt with a thin circular head used to fill a passthrough hole in the tabletop of an Ikea/Lack table.  PTFE tubing is passed through the center of the bolt to provide a clean path for filament from the top of a Lack table to a 3d printer beneath a tabletop.  May also be used without PTFE tubing if desired.  

Printed at 0.2mm layer height with no supports.