3Racing 3RAC-NF40/LB Racing Grade 4mm Flanged Aluminium Lock Nuts Light Blue  [3RAC-NF40/LB]

Track-focused flanged lock nuts for precision setups

For racers and serious tuners, the 3Racing 4mm flanged aluminium lock nuts deliver a low-weight fastening solution that helps preserve suspension response. The flange increases bearing area for improved clamp distribution, reducing the likelihood of loosening under dynamic loads common in competition driving.

Optimised weight and secure seating

The aluminium construction minimises added mass while the anodised finish provides a consistent mating surface. These nuts are suitable where firm, repeatable clamp is required without the penalty of heavier steel alternatives. Fit them where you need reliable retention and reduced unsprung weight.

Application and service considerations

These 4mm flanged nuts are adaptable to a variety of racing chassis and are supplied in a 10 piece quantity to support multiple attachment points or spare parts during setup changes. Check thread compatibility and confirm seating before each run as part of routine pre-race checks.