If an earring top has ever loosened and dropped off, or a fresh piercing has felt scraped when you changed the jewelry, the threading is usually the reason. Internally threaded earrings fix both problems by hiding the threads inside the post. This guide explains what they are, how they compare to threadless and externally threaded styles, and how to pick a size and material that stays comfortable all day.
Key takeaways
- Internally threaded earrings hold the threads inside a hollow post, so the smooth post passes through the piercing without scraping.
- They are one of three common mechanisms: internally threaded, externally threaded, and threadless.
- Implant grade titanium (ASTM F136) is the safest common material for new piercings and sensitive ears.
- An internally threaded flat back sits flush, so it is comfortable to sleep in and hard to lose.
What Are Internally Threaded Earrings
If you have ever felt a rough edge drag through a healing piercing, you already know the problem this design solves. The threading on a post can catch tissue and irritate a fresh hole, and that friction is exactly what internally threaded earrings remove.
Internally threaded earrings are studs or labrets whose post is hollow and threaded on the inside, so the front screws into the post instead of over it. The threads sit inside the tube of the post, and the part that slides through your ear stays smooth. There are no exposed grooves to catch tissue or trap debris while the hole heals.
You will see the same design under a few names. Internal thread earrings and internally threaded body jewelry describe the same mechanism. Piercing studios often call the decorative front a threaded end, so the phrase threaded ends body jewelry points to the top piece that screws into an internally threaded post.
Compared to the other backings in the types of earring backs roundup, this mechanism belongs to the threaded family. The key detail is where the threads live, and that one detail changes comfort and safety, which the next section makes clear.
Internally Threaded vs Externally Threaded vs Threadless
The question people ask most is threadless vs internally threaded, and which one they should buy. A second question, internally threaded vs externally threaded jewelry, is just as common. All three are valid ways to fasten a flat back, and each one behaves differently.
An internally threaded post keeps the smooth surface on the outside, which is why piercers reach for it for a fresh or healing piercing. The front screws into the tube, so the connection is secure and there is nothing rough to drag through the hole.
An externally threaded post is the older and cheaper design. The threads are cut into the outside of the bar, so every time the post passes through the piercing, those grooves can catch the tissue. That is acceptable for a fully healed piercing and short wear, but most professionals avoid it for fresh holes.
A threadless post uses no threads at all. The front has a slightly bent pin that you push into the hollow post, and friction holds it in place. It is the fastest to change, but it can work loose if the pin loses its bend.
For most people, the choice comes down to healing safety and how often you change the top. That is exactly what the pros and cons below weigh.
Pros and Cons of Internally Threaded Earrings
No mechanism is perfect for every ear. Here is where internally threaded earrings win, and where they ask a little more of you.
Pros
-
Smooth post. The outside of the post is smooth, so it slides through a healing piercing without scraping tissue.
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Secure connection. Screwing the front into the post holds better than friction alone, so the top is less likely to loosen and fall off.
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Piercer approved. Professionals use this style as the standard for labret, helix, cartilage, and tragus jewelry during healing.
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Flush fit. An internally threaded flat back sits against the skin, so it is comfortable to sleep in and less likely to snag.
Cons
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More steps to change. You have to line up the threads and turn the front, which is slower than pulling a threadless pin.
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Smaller parts. The threaded tops are tiny, and they are easy to drop if you change jewelry over a sink without a plug.
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Slightly higher price. The machining is more precise than an externally threaded bar, so the cost is usually a little higher.
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Cross-threading risk. If you force the front in at an angle, the threads can cross and jam, so you have to start slowly and gently.
The summary is simple. For a new piercing, a sensitive ear, or a piece you want to sleep in, the smooth post is worth the extra few seconds of setup. For a fully healed piercing you change daily, a threadless pin can be faster. That trade-off is clearest in the flat back style, which is the most common use of this mechanism.
How to Choose Internally Threaded Earrings
The mechanism matters, but it is only one of three decisions. The material and the size decide whether the earring feels good in your ear, so work through them in this order.
-
Check the material first. Implant grade titanium (ASTM F136) is nickel-free and is the standard piercers trust for new piercings and sensitive ears. Solid 14k gold works for healed piercings but is softer and pricier.
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Match the gauge. Most lobes use 18 gauge (1.0 mm) or 20 gauge (0.8 mm), while cartilage often uses 16 gauge (1.2 mm). If you are unsure how these numbers map to millimeters, the ear gauge sizes guide explains the scale.
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Pick the length. A 6 to 8 mm post fits most lobes, and cartilage often starts at 8 mm to allow for swelling before you downsize.
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Confirm the thread size. Threaded tops and posts must match, so check the spec before you mix pieces. For example, Tireya flat back earrings use a 0.9 mm internal thread, so the post and top are made to fit each other.
-
Verify the grade is named. A listing that names ASTM F136 or ASTM F67 gives you something checkable, while a vague claim of hypoallergenic does not.
The ASTM International publishes the F136 standard, so a seller that names it is giving you a verifiable reference rather than a marketing word. Nickel is the most common cause of metal irritation, as the American Academy of Dermatology explains, which is why the material decision comes before everything else. Once the size and material are right, the last thing to learn is how the piece goes in and comes out.
How to Put On and Remove Internally Threaded Earrings
The first time you hold one of these small pieces, the mechanism can feel confusing. The motion is simple once you know it is a turn, not a pull.
How to put on internally threaded earrings
- Wash and dry your hands, then work over a towel or a plugged sink so a dropped piece is easy to find.
- Screw the post into the flat back if they came apart, or buy them already joined.
- Insert the smooth post through the piercing from the front.
- Hold the post still and turn the decorative top clockwise until it sits snug against the front. Do not overtighten.
For a full close-up walkthrough with the flat back style, read how to put on flat back earrings.
How to remove internally threaded earrings
- Hold the flat back or post still with one hand so it cannot rotate.
- Turn the front counterclockwise while the back stays fixed.
- Once the front is loose, slide the post out from the front and store both pieces together.
For a step-by-step guide that covers threaded and threadless pairs, read how to remove flat back earrings.
That covers the mechanics. The last decision is where to buy, which comes down to how clearly a brand documents the material and the thread spec.
Common Brands and Where to Buy
Internally threaded jewelry is not hard to find once you know what to look for. The difference between retailers is usually how clearly they document the material, the gauge, and the thread size.
A number of piercing-focused retailers carry internally threaded titanium and gold styles, including Body Art Forms, Pierced Addiction, and Simple & Dainty. Shopping from a specialist usually gets you a wider range of gauges and lengths than a general fashion retailer. The thing to check, no matter where you buy, is whether the listing names the material grade and the thread spec instead of hiding them.
Tireya is one place that states both up front. Every Tireya Flat Back Earrings uses a 0.9 mm internal thread post in ASTM F136 implant grade titanium, so the top and post are made to match, and the smooth post passes through the piercing without scraping. That documented spec removes the guesswork from choosing a compatible top.
Beyond the brand, the material is the safety decision. The Association of Professional Piercers lists implant grade titanium among the materials it considers appropriate for fresh piercings, and it is the same nickel-free metal that suits sensitive ears. Once you have a documented grade and a matching thread, the only open questions are the ones people ask most, answered below.
Frequently Asked Questions
Are Internally Threaded Earrings Better Than Other Types?
For fresh piercings and sensitive ears, yes. Internally threaded earrings keep the threads inside the post, so the smooth surface slides through the piercing without scraping tissue. Threadless styles are faster to change, but internally threaded pieces hold more securely and are the standard piercers use for healing jewelry.
How Do You Put On Internally Threaded Earrings?
Insert the smooth post through the piercing from the front, then hold the post still and turn the decorative top clockwise until it sits snug. Work over a towel or a plugged sink, and do not overtighten. The motion is a turn, never a pull.
How Do You Remove Internally Threaded Earrings?
Hold the post or flat back still with one hand and turn the front counterclockwise with the other. Once the front loosens, slide the post out from the front. Keep the back fixed so only the front turns.
Are Internally Threaded Earrings Good for Sensitive Ears?
They can be, when the metal is right. Pair an internally threaded post with nickel-free implant grade titanium (ASTM F136), and you remove both the scraping and the nickel, the most common cause of metal irritation. Check that the listing names the grade rather than just the word hypoallergenic.
What Sizes Do Internally Threaded Earrings Come In?
Internally threaded earrings come in the same gauges as other labret jewelry. Most lobes use 18 gauge (1.0 mm) or 20 gauge (0.8 mm), and cartilage often uses 16 gauge (1.2 mm). Thread sizes vary by brand, so confirm the spec before you mix tops and posts.
Conclusion
Internally threaded earrings solve a real problem: exposed threads that can scrape a healing piercing and a top that loosens and falls off. By putting the threads inside the post, they keep the surface smooth and the connection secure, which is why they are the standard for flat back labrets and a smart pick for sensitive ears. The three decisions that decide the outcome are the mechanism, the material, and the size.
Your next step is to pick a documented pair. Look for a listing that names ASTM F136 titanium, states the gauge and length, and confirms the thread spec, then start with a flat back that sits flush. Browse the collection linked above, and you can wear it all day and night without the scrape, the pressure, or the worry of losing the top.
Sources
What Are Internally Threaded Earrings? Types, Pros, and Buying Guide
If an earring top has ever loosened and dropped off, or a fresh piercing has felt scraped when you changed the jewelry, the threading is usually the reason. Internally threaded earrings fix both problems by hiding the threads inside the post. This guide explains what they are, how they compare to threadless and externally threaded styles, and how to pick a size and material that stays comfortable all day.
Key takeaways
What Are Internally Threaded Earrings
If you have ever felt a rough edge drag through a healing piercing, you already know the problem this design solves. The threading on a post can catch tissue and irritate a fresh hole, and that friction is exactly what internally threaded earrings remove.
Internally threaded earrings are studs or labrets whose post is hollow and threaded on the inside, so the front screws into the post instead of over it. The threads sit inside the tube of the post, and the part that slides through your ear stays smooth. There are no exposed grooves to catch tissue or trap debris while the hole heals.
You will see the same design under a few names. Internal thread earrings and internally threaded body jewelry describe the same mechanism. Piercing studios often call the decorative front a threaded end, so the phrase threaded ends body jewelry points to the top piece that screws into an internally threaded post.
Compared to the other backings in the types of earring backs roundup, this mechanism belongs to the threaded family. The key detail is where the threads live, and that one detail changes comfort and safety, which the next section makes clear.
Internally Threaded vs Externally Threaded vs Threadless
The question people ask most is threadless vs internally threaded, and which one they should buy. A second question, internally threaded vs externally threaded jewelry, is just as common. All three are valid ways to fasten a flat back, and each one behaves differently.
An internally threaded post keeps the smooth surface on the outside, which is why piercers reach for it for a fresh or healing piercing. The front screws into the tube, so the connection is secure and there is nothing rough to drag through the hole.
An externally threaded post is the older and cheaper design. The threads are cut into the outside of the bar, so every time the post passes through the piercing, those grooves can catch the tissue. That is acceptable for a fully healed piercing and short wear, but most professionals avoid it for fresh holes.
A threadless post uses no threads at all. The front has a slightly bent pin that you push into the hollow post, and friction holds it in place. It is the fastest to change, but it can work loose if the pin loses its bend.
For most people, the choice comes down to healing safety and how often you change the top. That is exactly what the pros and cons below weigh.
Pros and Cons of Internally Threaded Earrings
No mechanism is perfect for every ear. Here is where internally threaded earrings win, and where they ask a little more of you.
Pros
Cons
The summary is simple. For a new piercing, a sensitive ear, or a piece you want to sleep in, the smooth post is worth the extra few seconds of setup. For a fully healed piercing you change daily, a threadless pin can be faster. That trade-off is clearest in the flat back style, which is the most common use of this mechanism.
How to Choose Internally Threaded Earrings
The mechanism matters, but it is only one of three decisions. The material and the size decide whether the earring feels good in your ear, so work through them in this order.
The ASTM International publishes the F136 standard, so a seller that names it is giving you a verifiable reference rather than a marketing word. Nickel is the most common cause of metal irritation, as the American Academy of Dermatology explains, which is why the material decision comes before everything else. Once the size and material are right, the last thing to learn is how the piece goes in and comes out.
How to Put On and Remove Internally Threaded Earrings
The first time you hold one of these small pieces, the mechanism can feel confusing. The motion is simple once you know it is a turn, not a pull.
How to put on internally threaded earrings
For a full close-up walkthrough with the flat back style, read how to put on flat back earrings.
How to remove internally threaded earrings
For a step-by-step guide that covers threaded and threadless pairs, read how to remove flat back earrings.
That covers the mechanics. The last decision is where to buy, which comes down to how clearly a brand documents the material and the thread spec.
Common Brands and Where to Buy
Internally threaded jewelry is not hard to find once you know what to look for. The difference between retailers is usually how clearly they document the material, the gauge, and the thread size.
A number of piercing-focused retailers carry internally threaded titanium and gold styles, including Body Art Forms, Pierced Addiction, and Simple & Dainty. Shopping from a specialist usually gets you a wider range of gauges and lengths than a general fashion retailer. The thing to check, no matter where you buy, is whether the listing names the material grade and the thread spec instead of hiding them.
Tireya is one place that states both up front. Every Tireya Flat Back Earrings uses a 0.9 mm internal thread post in ASTM F136 implant grade titanium, so the top and post are made to match, and the smooth post passes through the piercing without scraping. That documented spec removes the guesswork from choosing a compatible top.
Beyond the brand, the material is the safety decision. The Association of Professional Piercers lists implant grade titanium among the materials it considers appropriate for fresh piercings, and it is the same nickel-free metal that suits sensitive ears. Once you have a documented grade and a matching thread, the only open questions are the ones people ask most, answered below.
Frequently Asked Questions
Are Internally Threaded Earrings Better Than Other Types?
For fresh piercings and sensitive ears, yes. Internally threaded earrings keep the threads inside the post, so the smooth surface slides through the piercing without scraping tissue. Threadless styles are faster to change, but internally threaded pieces hold more securely and are the standard piercers use for healing jewelry.
How Do You Put On Internally Threaded Earrings?
Insert the smooth post through the piercing from the front, then hold the post still and turn the decorative top clockwise until it sits snug. Work over a towel or a plugged sink, and do not overtighten. The motion is a turn, never a pull.
How Do You Remove Internally Threaded Earrings?
Hold the post or flat back still with one hand and turn the front counterclockwise with the other. Once the front loosens, slide the post out from the front. Keep the back fixed so only the front turns.
Are Internally Threaded Earrings Good for Sensitive Ears?
They can be, when the metal is right. Pair an internally threaded post with nickel-free implant grade titanium (ASTM F136), and you remove both the scraping and the nickel, the most common cause of metal irritation. Check that the listing names the grade rather than just the word hypoallergenic.
What Sizes Do Internally Threaded Earrings Come In?
Internally threaded earrings come in the same gauges as other labret jewelry. Most lobes use 18 gauge (1.0 mm) or 20 gauge (0.8 mm), and cartilage often uses 16 gauge (1.2 mm). Thread sizes vary by brand, so confirm the spec before you mix tops and posts.
Conclusion
Internally threaded earrings solve a real problem: exposed threads that can scrape a healing piercing and a top that loosens and falls off. By putting the threads inside the post, they keep the surface smooth and the connection secure, which is why they are the standard for flat back labrets and a smart pick for sensitive ears. The three decisions that decide the outcome are the mechanism, the material, and the size.
Your next step is to pick a documented pair. Look for a listing that names ASTM F136 titanium, states the gauge and length, and confirms the thread spec, then start with a flat back that sits flush. Browse the collection linked above, and you can wear it all day and night without the scrape, the pressure, or the worry of losing the top.
Sources