Suppose I would like to insert data-cables of varying diameters — e.g., a cable of 5 mm diameter — into the 6 mm diameter hole of a plastic enclosure. The wires within the cable are terminated via soldering to a PCB inside the enclosure.
What methods are used in the industry to ensure that pulling the cable won't make it slide in and out of the enclosure (thus preventing damage to the wire connections to the PCB inside)?
Some options that I have considered:
Two small lengths of thick heat shrink tubing placed around the cable, both just inside and just outside the wall of the enclosure. If the tubing is wide enough, then it will block the cable from sliding. This could work but may have to use too many layers of tubing and also the fit just by friction alone may not be strong enough.
Apply a thick layer of rubber-compatible adhesive in a circle around the cable, both just inside and just outside the wall of the enclosure. The glue blob would act as sort of a bolt/washer. This is too messy in practice, and probably not usable professionally.
Use rubber-and-steel-compatible adhesive to place two bolts around the cable, one just inside and one just outside the wall of the enclosure. The problem with this is that it is hard to find an adhesive that bonds well to both rubber and steel.