Belly piercing jewelry threading – internal and external ...
Most of the belly body jewelry is threaded externally – the shaft is threaded at the end so that it can be screwed into the ball. Some belly button rings, though, have internal threading. In this case, there are small threads outside the ball. The belly ring has a recess with threads in it where the ball is screwed in. Is there a big difference? – you may ask. If you choose between internally and externally threaded belly button rings, …
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