F1 Chassis 4mm Flange Nut (F101/102 Compatible) - Tamiya 9804579  [9804579]

Replacement 4mm flange nut for F1 and Group C

This item is a straightforward replacement part for Tamiya F1-style layouts and compatible F101/102 Group C hop-up assemblies. The flanged face spreads load and helps maintain a secure hold on suspension points, body mounts, and other compact joints prone to vibration.

Use this 4mm flange nut wherever the original hardware specifies a flanged 4mm fastener in F1 chassis or Group C hop-up kits. It is meant for part renewal, maintenance tasks, and light setup adjustments such as securing linkages or fixtures after changes.

Installation notes

• Fit only to matching 4mm threaded studs and verify proper thread engagement before final tightening.
• Begin threading by hand to prevent cross threads, then finish with an appropriately sized hex tool or wrench.
• Do not over-tighten; delicate plastic mounts and thin panels can be damaged by excessive torque.
• Re-check and re-torque after the initial run and during normal maintenance intervals to ensure vibration retention.