1. Suitable for 2204, 2205, 2206 motor with 5mm bearing, and effectively fasten the propeller
2. The 4.5mm height nut is low profile type which is suitable for most of the motors
3. Lock Nuts ensure a secure hold; reduce slippage
4. Drive system is a hexagon-shaped head, self-locking, nylon insert
5. Coarse threads are better for brittle materials and will assemble and disassemble more quickly than fine threads
6. Material: aluminum alloy
7. Size: M5x6mm (height)

Notice:
CW nut means turn the nut clockwise to lock it
CCW nut means turn the nut counter-clockwise to lock it