This Tamiya replacement screw is supplied for TRF421 hop-up parts and compact mounting points that require a flat 3x6mm head. It is intended as a direct substitute where the flat countersunk profile is specified.
Application notes: The flat-head screw secures small plates, shock tower fittings and gearbox attachments on TRF421-compatible assemblies. It is suitable for standard maintenance, replacing lost fasteners, and maintaining setup geometry during adjustments.
Fitting instructions: Engage into the original threaded bosses or approved inserts and tighten just until secure, avoiding over-torque. Confirm parts alignment before the final tightening to preserve thread engagement and positional accuracy.
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