3RACING 3RAC-NS40/BL Race-Grade 4mm Black Serrated Aluminium Locknut Set (8pcs)  [3RAC-NS40/BL]

Precision locking for RC assemblies

Model makers and racers who need reliable fastenings will appreciate the 3Racing 4mm Serrated Aluminium Locknuts. These nuts are made from aluminium to keep mass down while offering secure clamping on 4mm threads. The serrated edge bites into mating surfaces to lower the chance of vibration-induced loosening.

Feature overview

• Material: Aluminium for a lightweight, strong nut
• Design: Serrated profile to discourage backing off
• Color: Black finish for a professional appearance
• Compatibility: Suitable for a range of RC items that use 4mm nuts

Where these perform best

Use these locknuts on steering, suspension and other critical joints where secure fastenings help preserve handling and reliability. They are a straightforward, effective upgrade for most model applications.