ecig threads/adapters

Differences Between E-cig Threads/Adapters

Published On April 6, 2015 | By Nicole | About E-Cigarettes Articles

Differences Between E-cig Threads/Adapters

If you’ve done any E-cig shopping lately, you’ve probably noticed that not all brands, models, and types are compatible – and one thing that makes certain makes and models work together (or not work together) are the threads that connect the different pieces together – though this isn’t always such a straightforward thing to figure out. In fact, it can be downright confusing. Brands often post thread types as a series of numbers, but this doesn’t always tell us what we need to know to figure out whether or not certain brands, types, or threads will work together.

In this article, we’re going to attempt to take a look at some of the most common thread types and explain them. Hopefully, this will make it easier for you (the shopper/consumer) to shop for batteries, adapters, and clearomizers at different websites without leaving you afraid that you’re going to purchase incompatible parts and waste your money.


You’ve probably seen these numbers posted on many different E-cig websites. They seem to describe the threads on most Ego style E-cigs, as well as some minis and mods. Many brands are using this thread type nowadays, though most people don’t realize that 510 threads are also compatible with 306 model E-cig adapters, so the two will actually work together.

The threads on the battery are female with 510 adapters, while the threads on the atomizer are male.

KR808D-1 (or E-8, as it may also be known)

With this type, the threads on the atomizer are female while the threads on the battery are male. Many brands utilize this style, including Halo G6 products, some V2 Cig products, and many more.


This thread type is actually sometime s compatible with KR808D-1, depending upon the situation and the parts. The threads are actually the same, though sometimes the connection isn’t made well enough for it to work. The threads on the atomizer are male with this type of connector, while the threads on the battery are female.

KR808D-2 (or E9, as it is sometimes known)

This connector type places the female threads on the battery, while the male threads are found on the atomizer or cartomizer. Some popular brands make use of this type – including Green Smoke.

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This style is a bit older, though you might still see it around in some brands. NJOY is one example of a brand that still makes use of it for some of its products. The female threads on this type of connector are found on the battery, while the atomizer will house the male threads.

As you can see, there are a number of different threads circulating out there, and many of them aren’t compatible with one-another. If you’re currently shopping for an E-cig and want to know exactly what you’re getting, then here are some tips that you might want to follow.

 Tip #1… Look on the website

Some websites actually tell you which threads come with certain products. For example, when you’re looking at a particular E-cig, you might be able to look at the product description for the technical specs to find out for sure which thread-type it utilizes.

Tip #2… Call and ask

If you can’t find thread information on the product website, then you might want to call, message, or email the company for more information. A quick message will often answer the vast majority of your questions, and can help to point you to the right products for you.

Tip #3… Decide whether or not it’s important to you to have interchangeable parts

Some people don’t really care if they own two different E-cig kits with different threads – but some people want to make sure that all of their parts are compatible.

Before shopping, you might want to consider this question and decide on the best answer for you. There are definite upsides to both options – so giving it a bit of thought before placing your order could save you time, money, and/or frustration down the road.

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About The Author

Nicole It's my passion to do the research about familiar to me topics, especially when it comes to electronic cigarettes and the whole vaping industry as such. I hope you will find my content useful and when / if you do - please do share it! I will appreciate it! :) See our ''Who We Are'' page to find out more about me and my colleagues. Thanks and I look forward to your comments and feedback.

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