HO/OO Freelance "Work" Brake Van Chain

This product is a freelance design that imagines what would happen if Railroads in the UK made Brake Vans that followed the same building tradition of "Work Cabooses" in the United States.  The model takes elements from several of my favorite cabooses and the Railway Series character "the Trucks" from the Railways Series book, "Mountain Engines".  The caboose features a removable roof, planked flooring, and fine detailed rivets and handrails.  The Bachmann version of this model features the international Hook and Loop coupling system, with hooks included.  The Chain version does not include the international Hook and Loop coupling system, instead being intended for the more realistic 3-chain and Hook coupling system.  In order for the bogies to attach to the chassis, 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.  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.  I will include corridor seating and other interior details as a separate product elsewhere on my store.  

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