Why use a flange nut?
In order to transmit the correct steering force, the joint of the knuckle and Tie rod-end must be combined with the correct torque at the correct position.
1. Improve safety
Locked nuts require more than a certain amount of force to loosen. If the release torque is low, the nut may be loosened by vibrations during driving, which can cause a very serious situation. CTR applies a flange nut when a larger release torque is required according to the specifications of the original part.
As shown in the figure, the flange nut has a larger contact area than the general nut, so it easily secures a larger release torque and improves safety.
2. Stopper
The aluminum knuckle has a bushing inserted at the assembly position of the ball joint. This serves as a guide for the knuckle and ball stud to be assembled correctly. It is also used to prevent wear due to continuous load and high strength and smooth surface minimizes clearance in assembly. Bushings are made thicker for this function. If the cross sectional area of the bushing is wider than the nut, it may be dangerous because the nut and the bushing come off from the knuckle body. As flange nut is large enough to cover entire bushing, it can also plays a role of stopper, so that bushing won't come off.
