Threadless vs Threaded Piercing Jewellery
How a piercing top attaches to its post might sound like a detail, but it matters for comfort and healing. There are three systems: threadless (push-pin), internally threaded (the top screws into the post), and externally threaded (the post has screw threads on the outside). Two are good, one is best avoided. Here is the difference and why it matters.
Vanhess sells piercing jewellery in Coquitlam; we do not perform piercings. Get pierced at a professional studio, then use this guide to choose your threadless or threaded post jewellery.
Threadless (push-pin)
On a threadless system, the hollow post has no threads, and the decorative top has a slim pin that bends slightly and presses into the post to hold by friction. You simply push the top in and pull it out. The big advantage is that the surface passing through the piercing is completely smooth, so nothing scrapes the channel, and changing tops is quick. Threadless is a favourite of professional piercers for exactly this reason, and it is excellent for healing and for anyone who likes to swap tops often.
Internally vs externally threaded
Internally threaded means the threads are inside the hollow post, and the top has a tiny screw that turns into it, so again the surface through the piercing is smooth. It is very secure and a great choice. Externally threaded is the one to avoid: the screw threads are on the outside of the post, so those sharp threads drag through the piercing every time it goes in or out, irritating the channel. Cheap jewellery is often externally threaded. For healing especially, insist on threadless or internally threaded.
Gauge and size
| System | How it works and when to use it |
|---|---|
| Threadless (push-pin) | Smooth post, top presses in; smooth through the piercing, easy to change. Excellent. |
| Internally threaded | Threads inside the post, top screws in; smooth surface, very secure. Excellent. |
| Externally threaded | Threads on the outside of the post; drags through the piercing. Avoid, especially for healing. |
Our sizing and gauge guide explains these numbers.
Styling
Threading is about the mechanism, not the look, so the same decorative tops, plain, shaped, or gem-set, are available on threadless and internally threaded posts. What threading gives you is easy, comfortable changes: a threadless top pops on and off in seconds, and an internally threaded top screws on securely. That convenience is what makes building a collection of tops for one post practical.
What to check when buying threadless or threaded post jewellery
Before you buy, confirm a few things so the piece fits and heals well:
- Gauge match. Buy the same gauge as your piercing, usually any gauge for a threadless or threaded post. Too thin and it moves in the channel; too thick and it will not fit.
- Smooth through the piercing. Choose threadless or internally threaded jewellery so nothing rough passes through the channel. Externally threaded posts drag screw threads through and irritate it.
- Material. Implant-grade titanium (ASTM F-136) or solid nickel-free gold only. Skip anything plated or unmarked.
- Threading type. Choose threadless or internally threaded so the surface through the piercing is smooth; avoid externally threaded for healing.
- Finish. The piece should feel glass-smooth, with no rough edges or casting pits that can snag tissue.
Style and gemstone options
Tops for threadless and internally threaded posts come in every style, from plain balls and discs to prong- and bezel-set stones, in cubic zirconia up to genuine diamond, in yellow, white, or rose solid gold and titanium. The threading determines how the top attaches, not what it looks like, so you can find any style in a safe, smooth-post system. When you buy, check the piece is threadless or internally threaded, never externally threaded.
Common mistakes to avoid
- Changing too early. Swapping jewellery before the piercing is fully healed is the top cause of bumps and setbacks. Wait for your piercer's go-ahead.
- Cheap or plated metal. Nickel and worn plating cause most "my piercing is reacting" problems. Stay with implant-grade titanium or solid gold.
- The wrong size. A post or ring that is too long, too short, or the wrong gauge moves, snags, or presses. Match your gauge and get the length or diameter right.
- Over-cleaning. More than a twice-daily saline rinse, or using alcohol and ointments, slows healing rather than helping it.
- Sleeping on it or knocking it. Pressure and snags are a common cause of irritation, especially in the early weeks.
Aftercare in brief
Whatever you wear, a healing piercing needs the same simple routine: clean it once or twice a day with sterile saline, keep your hands off it, do not twist or remove the jewellery, and leave it in until a professional says it is healed. Stay out of pools, hot tubs, and lakes, and avoid knocks and sleeping on it in the early weeks. Most trouble comes from cheap metal or the wrong size rather than too little cleaning, so the jewellery you choose matters as much as the routine. Our aftercare guide has the full method, and our guide to bumps versus infection covers what to watch for.
Key Takeaways
- Threadless (push-pin) and internally threaded posts keep the surface through the piercing smooth.
- Externally threaded posts drag screw threads through the channel and should be avoided, especially while healing.
- Threadless is quick to change and a favourite of professional piercers; internally threaded is very secure.
- Threading is about the mechanism; the same decorative tops come on both good systems.
Frequently Asked Questions
What does threadless mean in piercing jewellery?
Threadless, or push-pin, means the top has a slim pin that presses into a smooth hollow post by friction, with no screw threads. The surface through the piercing is completely smooth, and tops change quickly by pushing in and pulling out. It is a favourite for healing and easy swaps.
What is the difference between internally and externally threaded?
Internally threaded posts have the threads inside the hollow post, so the surface through the piercing is smooth and the top screws in. Externally threaded posts have threads on the outside, which drag through the piercing and irritate it. Internally threaded is good; externally threaded is best avoided.
Which threading is best for a new piercing?
Threadless or internally threaded, because both keep the surface passing through the piercing smooth, which a healing channel needs. Avoid externally threaded jewellery, where the sharp threads scrape the piercing every time the top goes in or out.
How do I know if jewellery is externally threaded?
The post has visible screw threads along its outside, and cheap jewellery often does. If in doubt, ask the seller, or bring the piece in and we will tell you. For healing and comfort, choose threadless or internally threaded in a safe metal.
Sources
- Association of Professional Piercers — Jewelry for Initial Piercings
- Association of Professional Piercers — Aftercare
General information, not medical advice. See a professional piercer for the piercing itself. Reviewed 20 July 2026.
Visit Vanhess
We stock threadless and internally threaded jewellery in implant-grade titanium and solid gold at 2929 Barnet Highway, Unit 2424 in Coquitlam. Browse our piercing jewellery, or call +1 (604) 653-6449. See the flat-back studs guide next.