Association of Professional Piercers - Know the difference between internal and external threading! Also keep in mind that the majority of externally threaded jewelry is not implant grade metal, and you could
![The THREADING of your piercing jewelry matters! - EXTERNALLY THREADED jewelry is safe for fully healed piercings, but it shou… | Jewelry, Piercing jewelry, Piercing The THREADING of your piercing jewelry matters! - EXTERNALLY THREADED jewelry is safe for fully healed piercings, but it shou… | Jewelry, Piercing jewelry, Piercing](https://i.pinimg.com/736x/e5/8b/4c/e58b4cf4d5aa8bec6ac66a4263838ee8.jpg)
The THREADING of your piercing jewelry matters! - EXTERNALLY THREADED jewelry is safe for fully healed piercings, but it shou… | Jewelry, Piercing jewelry, Piercing
![What is the difference between an external thread and internal thread with respect to bolts and nuts? How would you know which one requires which bolt/nut pairings? - Quora What is the difference between an external thread and internal thread with respect to bolts and nuts? How would you know which one requires which bolt/nut pairings? - Quora](https://qph.cf2.quoracdn.net/main-qimg-10c021968939cc3cab0146c0f00b2968.webp)