1. The threaded rod mounting system, with mount plates, is designed to attach to the the bottom of a flat, non-sloped surface that runs above your proposed track. The threaded rod allows you to drop the curtain and track down below your flat surface (typically your ceiling) to bypass any obstructions to your track.
a. If you have threaded rod couplings- Couplings are to join two threaded rods together, usually to create a longer drop from the beam to the track. Rods will thread directly into the coupling- one rod per each end of said coupling- and will remain held tight.
9. If your track runs do not end at existing walls, then please use the threaded rod split support- mounted to the I-beam above via the threaded rods, to support the end of your track. Adjustable end stops should be used at track end stop rollers from falling out of the track.