Tapered Shaft Mounted Hydraulic Ring/ Propeller Nut ensures that the torque is transmitted through friction of the mating surfaces and the key performs a stand-by function if the friction is insufficient. The Hydraulic Ring/ Propeller Nut is made of quality grade raw material which ensures optimum durability along with long lasting trouble free service. The Hydraulic Ring/ Propeller Nut is strong and rigid in construction and requires minimal maintenance. Tapered Shaft Mounted Hydraulic Ring/ Propeller Nut can be custom made in various sizes and shapes as per specific requirements.