The 3RACING M4WD-18/BK black socket button screw is an M2 x 5 fastener tailored to Tamiya Mini 4WD assemblies. It is commonly kept as a spare for board setups and minor modifications.
This screw secures lightweight components without adding bulk, maintaining alignment under track stress. The black finish helps hide fasteners on darker parts and gives a neat appearance.
Use a small hex driver and avoid cross-threading. Replace any screw that shows wear to keep joints secure during competition.
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