“510 threaded” can refer to several parts of a vaporizer. However, 510 Threaded commonly refers to the threading that connects a vape pen or eCig attachment to its battery. Furthermore, this threading is 5mm in diamater and contains 10 threads.

510 threaded connections have a female connector on the battery and a male connection on the attachment. 510 threading is the most common type of threading used for pre-filled vape cartridges.