The 3RACING Cero 2.5mm lock nut (SAK-C170) is a compact replacement part aimed at keeping assembly points tight on Cero cars. It suits hobbyists who prefer quick, reliable fixes between sessions.
This lock nut helps secure suspension and body fixing points where a low profile and dependable hold are needed. It is compatible with parts that accept 2.5mm locking hardware in the Cero line.
Fit the nut straight onto the bolt to avoid damage to the thread and recheck after a short run. If you are in doubt on torque or adhesives consult your kit instructions before fitting.
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