The 3RACING Cero 2.5mm lock nut (SAK-C170) is intended as a compact, consistent fastening solution for Cero chassis setups. It is useful when tuning suspension and securing small hardware where repeatable clamping is required.
Install the nut with proper alignment to avoid cross-threading and ensure repeatable torque. Use it on mounting points where a positive locking action aids consistent handling across runs.
Inspect thread condition regularly and replace if any deformation is present. For competitive use, check fastenings during setup changes and after impact events to maintain predictable performance.