3RACING 3RAC-N40/PU 4mm Purple Aluminium Lock Nuts Racing Pack  [3RAC-N40/PU]

3RACING 4mm Aluminum Lock Nuts (10 Pcs) - Purple - 3RAC-N40/PU
Price:
USD$5.00
Brand:
3Racing
Model:
3RAC-N40/PU
Condition:
Brand New
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Performance Grade 3RACING 3RAC-N40/PU Fasteners

For competitive setups the 3RACING 4mm purple aluminium lock nuts offer a balance of low mass and reliable clamping. Their compact profile and coloured finish make pit-side checks faster when preparing a race car.

Application in Tuning and Setup

These lock nuts are suitable for fine tuning linkages, servo mounts and accessory brackets where secure locking under vibration is required. The 4mm sizing matches common small fastenings found in performance RC models.

Construction Notes for Hobby Racers

Aluminium construction reduces unsprung and rotating mass compared with heavier alternatives while providing sufficient hardness for repeated assembly. Use them as part of a targeted upgrade strategy to lighten and tidy fastener layouts without sacrificing security.

 

Product Reviews
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How do 3RACING 3RAC-N40/PU nuts affect unsprung weight?

Swapping heavier steel nuts for these aluminium items can reduce unsprung or rotating mass slightly, which may aid handling in tuned setups.

Are they suitable for race pit use?

Yes, the colour coding speeds part recognition between quick changes, and the low profile helps maintain clearance in tight assemblies.

What maintenance is recommended for these nuts?

Inspect threads for wear, clean debris before reassembly, and replace any nut showing distortion to keep reliability at events.

Can I use these with thread locker during races?

Use low to medium strength thread locker only where disassembly is not needed between heats; otherwise rely on the locking profile and correct torque.