Tamiya 9804579 - 4mm Flange Nut for F1 chassis and F101/102 Group C hop-up parts  [9804579]

4mm Flange Nut for F1 chassis

This is a compact RC-scale replacement part intended for Tamiya F1-style setups and compatible F101/102 Group C hop-up assemblies. The 4mm flange nut serves as a secure fastening element on suspension, body mounts, and other small connection points where a flanged bearing surface helps distribute load and reduce loosening under vibration.

Use this nut where the original hardware specification calls for a 4mm flange nut in F1 chassis or group C hop-up assemblies. It is intended for model-scale maintenance, part replacement, and minor tuning tasks such as securing linkages or fixtures after setup changes.

Installation notes

• Fit onto matching 4mm threaded studs only, confirm thread engagement before final tightening.
• Hand-start the nut to avoid cross-threading, then use a suitable hex driver or wrench sized for the nut head.
• Do not overtighten, check mating parts such as plastic mounts or thin panels to avoid deformation.
• Inspect and re-torque after first run and periodically during routine maintenance to ensure retention under vibration.