Measuring Threaded Balls and Threaded Accessories
Threaded balls and accessories (charms) are measured in two places. The â€˜gaugeâ€™ will be the size of the threaded hole in the ball, which fits the stem of your threaded body jewellery. For example, if you have a labret stud with a 1.6mm (14ga) gauge, you will need a threaded ball that also has a 1.6mm (14ga) gauge to be compatible with the stem of your labret stud.
The size of the threaded ball or accessory will be the measurement in diameter, across the widest part of the piece, whether it is a spherical ball or a flat disc, or a star.