This 4pcs set of stainless steel king pin screws is designed for the HPI Racing SAVAGE XL FLUX platform to secure front C hubs and rear knuckles. On-RC-scale parts like these help reduce play between the C hub and knuckle arm, producing a firmer steering feel and more consistent steering angle under load.
Installation and fit notes: the screws use M4 thread and are driven with a 2.5mm hex driver. The king pin shaft is unthreaded for the body with a diameter of 3.98mm and a total length of 21mm, matching the physical form factor needed for the C hub and knuckle mounting points. Use correct thread engagement and standard RC threadlock if required by your setup.
Tuning role: replacing stock hardware with these stainless pins reduces flex and gap, which can help when dialing steering response or when running stiffer suspension settings. They are RC-scale parts intended only for model use on the specified chassis.
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