Make sure you received all the parts you ordered by:
IMPORTANT NOTE: The TOP OF THE TRACK has to be mounted at ft. in. off the floor
Threaded Rod Split Support with 90° or 45° Track Curve These have a plain connector welded onto each end. Place the split support next to said connector both ends of the curved track.
Threaded Rod Split Support Used to support the end of a track run if the track is not run all the way to a wall.
Also, used as mentioned above.