Threadless piercing jewellery is an excellent new alternative to externally or internally threaded jewellery.  Unlike externally and internally threaded styles, threadless body jewellery is exactly as the name implies; it has no threads at all.

Threadless jewellery consists of a tiny, straight pin that fits inside a hollow post.  When you insert the pin into the post, apply slight pressure to create a small bend.  The slight bend keeps both pieces fixed together through tension, and can be adjusted for your comfort.