This ball connector fastens a king pin into an aluminium steering block using an ISO 3mm screw thread. Its button head profile keeps the stud low to avoid rubbing adjacent suspension and steering components on road-oriented R/C cars.
Compatibility hinges on the block's screw type and the spacing of holes; the component matches steering blocks that accept ISO 3mm threads. Verify the block will accept a button head screw and that the ball seat geometry is compatible with your linkage before fitting.
Fitting is simple for technicians: select the correct ISO 3mm screw, attach the ball stud to the steering block, and ensure the joint moves freely without noticeable play. Inspect ball-seat contact and re-torque after test runs, replacing the ball if wear or looseness appears.
In tuning terms, the low-profile ball joint reduces linkage interference and can improve steering predictability when combined with properly shimmed geometry and tight king pin assemblies.
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