My son's latest problem is that his house came with a large roller
shutter garage door which has been bodge-repaired in the past but which
needs further work.
The roller is oct(or more)agonal that has a full-length fitting
consisting of a rod on to which have been threaded hanger clips that
expose themselves another short piece of separate rod that the hanging
straps for the shutter clip onto. This all forms a sort of hinged
T-piece that clips onto the top of the shutter and when the roller rolls
the straps bend and the shutter rolls up over them. After a lot of
bending, the straps break.

Because the whole assembly is up near the roof of the big double garage,
access is very limited and nothing can be threaded on or off the ends.

Spares are unobtainable, but he has found some longer straps that can be
cut down and clipped round the exposed rod with the whole thing in situ.
The problem then is how to weld or glue the clips together so they can't
come off the exposed rod. They are sort of P-clips.

He has found some clips that will hold temporarily, but the original
clips were obviously spot-welded to make them secure. Neither he or I
can weld, and this is all above head, badly lit and in a real pain of a
place. He has been asking me about small nuts and bolts, and I have been
suggesting epoxy, but I don't think either are very good.
Each existing assembly is finished off with a sort of filament-loaded
parcel type sticky tape, which we think we have identified.

Is anyone here expert on these doors, or does anyone have a creative
solution?

As Google has demolished Picasa, the following is my first attempt at a
replacement to put pictures up. Hopefully it will work and make the
question a bit clearer (doubtful!)

https://www.irista.com/gallery/m8jehd5to6xt
--
Bill