Rubberized (plastic) Bolt and its weakness

So we broke one of our bolts. This is the plastic rubberized version, which is a one piece tube sized for an 18650. It has been pretty clear from the beginning that the 510 connection is loosely set in the device, as a tank will eventually develop a lean. I feared it would eventually fail, and it did. Basically, if you tighten anything tight enough to put any pressure on the 510 connection in a twisting manner, it will bend or break the internal plastic form that holds it from spinning. Once it spins, the solder connections break, and you will also be unable to unscrew whatever is connected to it, and you will end up breaking it out completely. These are cheap devices, so it's probably still worth buying, if you understand this weakness and don't torque anything down at all. They could have made it better by providing more of a bracing for the tab of plastic that keeps the 510 connector from spinning, but they didn't. Cracking open the tube makes it impossible to put back together without using a rubberband or something to hold it shut. The only method I could think of to repair it would be to shove something very strong in the area where the plastic bends to keep it tight, or solder long metal tabs to the 510 connection that stop it from spinning. Not worth the time.

Here are some pretty pictures. I think there is a limit on pics, so I'll add more later if necessary.

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