Hyperion Extra Long 3mm Collet Prop Adapter with M5 threaded shaft. Beautifully made, precise collet prop adapter from Hyperion, at a reasonable price. These Extra-Long adapters are the best choice when mounting APC E Props with backplate spinners.
This adapter has a M5 5mm threaded prop shaft and has a total length of 32mm. The threaded prop area that hold your prop is approximately 23mm in length.