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Screw thread is hidden inside the post
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What is the difference between internally and externally threaded jewelry?
Internally threaded body jewelry has a threaded hole inside the barbell and an external thread protruding from the ball. A barbell passes through the piercing and then the ball is inserted and screwed into place. What is externally threaded jewelry?
Why is internally threaded jewelry so important for piercings?
However, this tiny feature is so important to consider for a number of reasons. New piercings must use internally-threaded jewelry. In externally threaded jewelry, the thread will rub against the piercing as it slips through, which can cause trauma to the skin and bring in harmful bacteria.
What is an externally threaded piercing?
Externally threaded body jewelry has the thread on the end of the barbell and it is placed inside a threaded hole in the ball. This means that when the jewelry is being passed through the piercing, the threads also pass through it, and then the ball is screwed into place.
What are threads on jewelry?
Threads exist on body jewelry that has an end ball that screws on and off, like straight, curved, or circular barbells and labret jewelry. A thread is a spiraled ridge that winds around the metal like that on a screw or the inside of a nut.
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