

510 thread connections can be seen in almost every vape pen now. The standard connection type for vape pens and carts is typically a screw-on type which is exactly what 510 thread is.
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In some cases, like in mini MOD vapes, the battery and cartridge snap together using a magnet connector, but even these magnet adapters must contain some sort of thread to mount to the vape cart, and most likely it is going to be a 510 thread.

Although 510 threads are incredibly popular and a standard in the engineering of most vape pens, there are some vape pen products that use proprietary connections that are still very reliable too. If you’re looking for a vape pen battery that has a universal connector, the 510 thread is as close as it gets. 510 thread vape pens are among the best in the industry because of their ability to work with so many kinds of carts and batteries interchangeably. This allows for a tight connection and one that will last a long time. The term “510” was used for vape pen batteries and cartridges because most of the connectors are 5 MM in diameter and have 10 screw threads.

You might be asking yourself, “why was it named 510 thread?”. But the origin of the term 510 actually has nothing to do with 710, it's just a coincidence. If you think about it 510 almost sounds like 710 which is a popular term for “OIL” upside down.
