On our website you can see jewelry with 2 types of threads:
Internal thread (2 variants) and threadless (TL).
1. Internal thread:
There are two variants for this thread, each thickness of a base has its own thread:
A. For thickness of 1.2mm, thread is a 0.9mm thread.
B. For thickness of 1.6mm, thread is a 1.2mm thread.
2. Threadless (TL)Threadless ends fit threadless bases of any thickness (1.0, 1.2, 1.6mm).
The end is held by a curved pin.
We always bend the pin before shipping.