The 3RACING Aluminium M4 Countersink Washer in blue is a compact upgrade to tidy up visible screw heads and improve component seating. These washers are intended to sit flush under countersunk screws, giving a finished look and preventing catches on bodywork or mounting plates. Aluminium construction keeps them both light and robust for regular hobby use.
These M4 countersink washers are adaptable for many RC setups where a slim, smooth profile is desired. They are especially handy for racers and weekend tuners who disassemble gear regularly, as they simplify reassembly and protect screw heads from protruding during use.
Made from solid aluminium, these washers handle everyday wear and retain their shape under normal tightening. They pair with standard M4 countersunk screws and fit common chassis mounting points, making them a reliable spare for maintenance kits.
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