FrSky x10 x10s stick ends with offset for easier thumb use

thingiverse

To assemble your radio, start by tapping 4mm threads with a tap or a substitute 4mm bolt if you don't have one. Secure them directly onto the radio. However, this is not the recommended approach. If you choose to do so and your printer's calibration isn't precise, the thread might be too small, potentially causing damage to the gimbal stick.