Threadless vs. Threaded Piercing Jewelry: Which Should You Choose?

Most people pick body jewelry solely based on how it looks, without thinking about how to put it on and take it off. The mechanism—threadless, internally threaded, or externally threaded—is an important consideration that most people overlook until they’re struggling to put on their earring right before they have to head out for the day. 

Here's what each one means and what you should know before you buy your next jewelry piece.

The Three Types of Threading

Before getting into which is better, it helps to understand what each type actually means.

Threadless (push-pin)

There are no threads at all. The decorative top has a small bent pin that you press into the hollow post. The bend in the pin creates tension that holds everything in place—no screwing required.

Internal threading

The post is hollow and smooth on the outside. The decorative top has a small threaded pin that screws into the front of the post. The threads never touch the inside of your piercing channel.

External threading

The threads (the screw grooves) are on the outside of the post itself. To put the jewelry in, you push the post through your piercing and screw a ball or backing onto the end from behind.

The Problem with External Threading

External threading is the most common type you'll find at fast fashion retailers and low-cost jewelry stores, but it's the least body-safe option of the three.

Because the threads are on the outside of the post, they pass directly through your piercing channel every time you put the jewelry in or take it out. Those ridges create micro-abrasions against the tissue, which can cause irritation, slow healing, and over time contribute to scarring in the channel.

External threading is also the most likely to unscrew on its own. The backing loosens with movement, catching on hair, clothing, and pillowcases—and once it's gone, so is your jewelry.

Internal Threading: a Meaningful Improvement

Internal threading solves the biggest problem with external threading: the threads no longer pass through your piercing. The post goes in smooth, and the decorative top screws in from the front without touching the channel at all.

It's a better option for tissue health and the standard recommendation from most professional piercers for threaded jewelry. The main downside is that it still requires screwing and unscrewing, which can be fiddly with small pieces, and the connection can work itself loose with enough movement.

Why Threadless Is the Easiest to Live With

Threadless jewelry removes the screwing mechanism entirely. The decorative top has a small pin with a slight bend in it. When you press it into the hollow post, the tension from that bend is what holds the piece in place. No threads, no screwing, no backing to lose.

For everyday wear, this has a few real advantages:

Easier to use. Changing tops takes seconds. Press in, press out. No tiny screws to fumble with before heading out.

More secure than it sounds. The tension mechanism is surprisingly strong. The top won't pop out from normal movement, sleeping, or getting changed—it requires deliberate pressure to remove.

Gentler on your piercing. Because nothing threaded ever enters the piercing channel, there's zero risk of micro-abrasions from the mechanism itself. The post goes in smoothly every time.

More versatile. Threadless posts are interchangeable—you can swap the decorative top while keeping the same post in your piercing. One post, multiple looks.

This is why Oh Kira! uses threadless flat backs exclusively—it's the mechanism that's easiest to use and live with, as well as the gentlest on your ears over time.

 

Overall Comparison

Table 1: pros and cons of externally threaded, internally threaded, and threadless flat backs

Which Should You Choose?

Of course, it’s up to your preference at the end of the day. But, if you ask us, threadless is the most practical option—easier to use, more secure, gentler on your skin, and more versatile. Internal threading is a solid alternative if a style you love doesn't come in threadless. External threading is worth avoiding when you have the choice.

If you're building out an ear stack or looking for pieces you can wear daily without thinking about them, threadless flat backs are the easiest answer. Browse the Oh Kira! collection—every piece is threadless, implant-grade titanium, and designed to be worn every day for an extra sparkle.