HO/OO Learning Segment Spoked Flatbed Bachmann

This model is based off of a rather unusual wagon featured in the learning segment of a scene from the Thomas & Friends series.  The wagon is some what shorter than a standard spoked flatbed, and has unusually large bogies.   In order for the bogies to attach to the chassis of this model, you will need to buy a size #4 screw with the associated Hex nut.  The hex nut will fit in the hex shaped hole on the underside of the chassis and will require glue to stay in place.  The screw will then go through the hole in the bogie and screw into the hex nut attached to the chassis.  The Bachmann version of this model features the international Hook & Loop style coupling system with hooks included.  The Chain version, on the other hand does not feature the international hook and loop coupling system, instead being intended for the more realistic 3 chain and hook coupling system.  Beyond the screws and nuts, you will also need to provide a set of two Hornby 14.1mm or HO scale 38" wheels for each bogie in order for the model to run.  

Here is a link with information about machine screws and hex nuts:  https://www.fastenermart.com/machine-screw-nuts.html