In competitive builds where consistency matters, the 3RACING Aluminium M3 Countersink Washer 3RAC-WC3/BU in blue offers a simple way to ensure each countersunk screw seats the same way every time. The 10-piece set supports repeatable assembly and straightforward part swaps during setup changes.
Aluminium washers give a low-mass option that keeps fastener heads flush while evenly distributing load from countersunk screws. This improves clamping reliability and helps maintain geometry under hard use without adding significant weight.
These M3 countersink washers are appropriate for 1/10 scale race cars and high-performance kits where precise screw seating reduces variability in setup. Fit them on suspension mounts, bulkheads and body mounts to preserve thread edges and streamline service intervals.