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
Top quality internally threaded titanium labret
Internal Threading vs External Threading Body Jewelry - Salamander Jewelry Blog
What is Internal Thread Jewellery? | TDi Body Jewellery Blog
Titanium Internal Thread Double Opal Nipple Bar - Front Facing Synth O – bodyjewellery.co.uk
Horseshoe Heavy 2 Gauge 5/8" Steel Internal Thread 8mm Ball Body Jewelry | eBay
A Question of Quality: Why Should I Choose Internally Threaded Jewelry? – FreshTrends Body Jewelry Blog
Classy Body Art: An Albany Body Piercing Studio - External vs Internal
Internally vs Externally Threaded Piercings – S-kin Studio Jewelry
Internally Threaded vs Externally Threaded Body Jewelry – BodyCandy
A great comparison of thread styles on jewelry. At our studios we never use externally threade… | Titanium jewelry, Belly jewelry, Sterling silver necklace pendants