If you thought you knew the world of LEGO® you don’t know brick. Step into the amazing real-life world of the global phenomenon that will captivate fans of all ages.
Using repair putty to produce internal threads for use with 4-40 rod. More wood-threading echniques here: https://www.jcopro.net/2013/01/23/how-to-tap-wood-for-machine-screw-use/