3RACING 3RAC-WC4/LB Performance Light Blue M4 Countersink Washers 10 Pack  [3RAC-WC4/LB]

3RACING Aluminium M4 Countersink Washer (10 Pcs) - Light Blue - 3RAC-WC4/LB
Price:
USD$3.10
Brand:
3Racing
Model:
3RAC-WC4/LB
Condition:
Brand New
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Precision Countersink Washers for Tuned RC Setups

The 3Racing aluminium M4 countersink washer in light blue is designed for competitive hobbyists who need consistent fastener seating. These washers deliver a controlled interface between screw head and mounting surface to reduce micro-movement under load.

Application Notes for Race Preparation

Use these countersink washers when setting up chassis plates, servo mounts and shock towers where repeatable clamp force matters. The countersunk geometry helps maintain alignment and keeps fasteners flush without interfering with component clearances.

Compatibility and Service Considerations

Suitable for common 1/10 scale platforms, these M4 washers perform well in high-vibration environments typical of racing. Keep a set in your spares kit to speed up pit repairs and ensure consistent hardware behaviour across setups.

Should I use these with washer stacks for tuning?

Yes, stacking with flat washers can alter preload and spacing; use measured stacks to fine tune component alignment without introducing play.

Are they suitable for aluminium and composite mounts?

They are compatible with both aluminium and composite parts. Monitor for galvanic reaction when combining different metals and use appropriate anti-seize where necessary.

How do they affect torque repeatability?

By creating a consistent seating surface, these countersink washers help maintain repeatable torque readings, reducing the chance of loosening between runs.

What spares should a race team carry?

Carry several packs of these M4 countersink washers plus a few flat washers and spare screws to handle common pit repairs quickly.