Threadless vs Threaded Piercing Jewellery: What's the Difference?

If you've been looking at piercing jewellery online — or listening to a piercer explain their recommendations — you've probably come across the words "threadless", "internally threaded", and "externally threaded". It sounds like technical jargon, but the difference genuinely matters for how comfortable your jewellery is, how easily it can be changed, and how it behaves in a healing piercing. Here's what each one means.

What is externally threaded jewellery?

Externally threaded jewellery has a screw thread on the outside of the post — the bit that goes through your piercing. To attach the decorative end or ball, you screw it onto the exposed thread.

The problem is that external thread means rough edges on the post itself. When you insert or remove externally threaded jewellery, those ridges pass through the piercing channel. In a healing piercing, this tears delicate new tissue. Even in a fully healed piercing, repeated insertion can cause micro-damage over time.

Externally threaded jewellery is cheap to produce, which is why it dominates fast-fashion piercing studios and market stalls. It is not what I use, and not what I stock.

What is internally threaded jewellery?

Internally threaded jewellery moves the thread to the inside of the post. The post itself is smooth on the outside — no ridges, no rough edges. The decorative end has a small pin that screws into the hollow post from the front.

This is a significant upgrade on external threading. The post passes through the piercing channel cleanly, with no abrasion. Internally threaded pieces are the minimum standard recommended by the Association of Professional Piercers (APP), and they're what most quality piercing studios use. Also larger gold pieces are better on a threaded end as this provides more stability as pins can bend right next to the top, or snap if its too heavy.

What is threadless jewellery?

Threadless jewellery — sometimes called press-fit — takes a different approach entirely. There's no screw thread at all. Instead, the decorative end has a small bent pin. When you press the end into the post, the pin straightens slightly under tension, and that tension is what holds everything in place.

It sounds simple, and it is — which is part of what makes it so good. The connection is secure enough for everyday wear but easy to release intentionally: just pull the end and post apart with a gentle pinching to and fro motion and they come apart cleanly. No unscrewing, no fiddly threads, no losing tiny balls down the plughole.

Threadless systems are also completely modular. One post can hold dozens of different ends — you can swap a simple gold ball for a gemstone end, a flower, a crescent, a charm, whatever suits the occasion. The post stays in place; only the decorative part changes. For a curated ear that you want to evolve over time, this flexibility is genuinely useful.

Which is better — internally threaded or threadless?

Both are far superior to externally threaded jewellery, and either is a reasonable choice for a healed piercing. For healing piercings and for long-term wearability, threadless has a few advantages:

• Completely smooth post. Nothing to catch, nothing to abrade. The post goes in and comes out cleanly every time, you may need to re bend the pin slightly if taking out a number of times, as the pin can straighten, but this is easily done..
• No thread to wear out. Internally threaded pieces can eventually strip if the thread is over-tightened or the wrong gauge ball is forced on. Threadless has no thread to damage.
• Easier jewellery changes. No need to grip and turn in a tight space — useful for awkward placements like the tragus or conch where there's not much room to manoeuvre.
• Interchangeable ends. The modular system means one post investment, infinite styling options.

The main brands I stock — Junipurr and Buddha Jewelry, along with newer additions Modern Mood and Tawapa — all offer threadless pieces. It's part of why I chose them. You can browse what's in at the moment in the online shop.

What about clicker rings and segment rings?

Rings work differently again. Clicker rings have a hinged segment that clicks into place — you open the hinge, pass the ring through the piercing, and click it shut. Segment rings are similar but the segment is fully removable rather than hinged. Neither uses a thread, and both are excellent options for healed piercings, particularly in cartilage placements like the daith, helix, or conch where a ring suits the anatomy well.

For fresh piercings, I'll usually start with a flatback labret (a threadless post with a flat disc on the back) rather than a ring — rings have more movement, which can slow healing. Once the piercing is settled, moving to a ring is often a great option.

What does "flatback" mean?

A flatback labret is a threadless or internally threaded post with a flat, low-profile disc on the back rather than a ball, butterfly back or decorative end. The flat back sits flush against ear or nostril, which means less pressure on healing tissue and less chance of the backing getting caught or pressing uncomfortably. It's the standard starting piece for most ear and nostril piercings in a quality studio.

When you see the term "flatback" in jewellery descriptions, this is what it refers to — the back of the post, not the front end.

How do I know what I currently have?

If you're not sure what system your existing jewellery uses, the easiest way to find out is to look at the post while it's out. Externally threaded has visible ridges on the post. Internally threaded has a smooth post with a small hole at the front. Threadless has a smooth post with a small hollow tube at the front, and the end will have a bent pin rather than a screw.

Still not sure what you have? Get in touch — email me at [email protected] and I'll happily advise.

Does the system affect aftercare?

Not directly — the same aftercare routine applies regardless of whether your jewellery is threadless or internally threaded. What matters more is the material (an implant-grade titanium post, with a titanium or solid gold end), the fit (correct gauge and length for your anatomy), and how little you disturb the piercing while it heals.

What the jewellery system does affect is how easy it is to change. Threadless is the simplest — which means if you do need to downsize (swap from the longer initial post to a shorter one once the swelling has settled, usually at 4–8 weeks), it's a quick, clean process.

Frequently asked questions

Can I mix ends from different brands in a threadless system?

Sometimes — most threadless systems use the same pin gauge and are broadly compatible. Junipurr ends generally work in Junipurr posts, and many other quality brands follow the same standard. That said, I'd always recommend matching brands where possible for a perfect fit, and if you're unsure, email me at [email protected] and I'll happily advise.

My jewellery keeps unscrewing — what's happening?

This is a common frustration with internally threaded pieces. It usually means the thread has loosened slightly, or the piece needs tightening. Internally threaded ends can be tightened by turning clockwise — but do it with clean hands and gently. If it keeps happening, it may be time to replace the piece, or consider switching to threadless where there's no thread to loosen.

Can I buy threadless ends separately and use my existing posts?

Possibly, but it depends on the gauge of your post and the brand. If you've bought good-quality internally threaded or threadless jewellery from a reputable piercing studio, there's a reasonable chance the ends will be compatible. If you're unsure, email me at [email protected] and I'll happily advise.

Why do some cheap studios still use externally threaded jewellery?

Cost, primarily. Externally threaded jewellery is significantly cheaper to manufacture. For a studio that's competing on price rather than outcome, it's the easy choice. The client bears the cost in slower healing and more irritation — which they often put down to "just how my body heals" rather than the jewellery itself.

Is threadless jewellery secure enough? Will it fall out?

In normal wear, yes — it's very secure. The tension pin system holds firmly through sleep, exercise, and everyday life. It can come apart if it receives a direct pull (a child grabbing at it, a towel catching it firmly), but this is actually a safety feature — it releases cleanly rather than tearing. If you're concerned about a particularly active lifestyle or a placement that gets knocked often, mention it when you book and we'll talk through the options.