Suitable For: connecting two axis with different diameters, can also be connected with a motor axis, or connecting shafts of different diameters.
Between the transmission member can do both screw can do model remote control boat propeller shaft and the motor power.
Top Thread Size: M4
Through Angle: 180 Degree
Dimensions: 14 x 25mm/0.55 x 0.98″(Dia x L)
4 x Grub screws