MIRA Testing video Video - MIRA Testing: MIRA logo

After 280 figure of 8 loops and 140 emergency stops, the Safety Wheel Nuts showed no movement or loss of torque.

how it works Video - How It Works:

Wheel detachment from vehicles can cause serious injury or death and is a major concern in the commercial vehicle industry.

See how the vibration-proof wedge-locking design of the Disc-Lock Safety Wheel Nut eliminates the risk of wheel loss from commercial vehicles.

What is the Disc-Lock Safety Wheel Nut?

The Disc-Lock Safety Wheel Nut is a free-spinning, vibration-proof wheel nut, specifically designed to prevent wheel loss from commercial vehicles such as trucks, trailers, and buses with spigot mounted wheel fixings. Widely recognised as an essential road safety device, it is considered to be far superior to standard two-piece wheel nuts.

Road wheels on commercial vehicles are subjected to a wide variety of forces, including vibration, lateral bending forces due to cornering, heat effects, and torsional forces caused by acceleration and braking. This combination, which results in the settling and looseness of normal bolted assemblies, activates Disc-Lock Safety Wheel Nuts to lock and maintain the clamping force, keeping the wheel securely fixed onto the axle.

Key features:

disc lock safety wheel nut

  • Prevents wheel loss
  • Approved by vehicle and axle manufacturers throughout Europe
  • Fitted by major fleets worldwide
  • Simple to install
  • Improves driver productivity
  • Reduces operating and service costs
  • Coated with Greenkote®
  • Has NATO and MOD part numbers


To view the range of accesories for the Disc-Lock Safety Wheel Nut, click here.

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To request a quote or for more information about our products, please contact us.


Further technical information on the Disc-Lock Safety Wheel Nut can be found below.

Data Sheet Installation Guides

A Selection of Customers

Greenkote® anti-corrosion protection

Disc-Lock Europe’s Safety Wheel Nuts and HRD Loc-Nuts are coated in an environmentally friendly process called Greenkote®, which is comparable to galvanising, although it is harder wearing and readily accepts all paint systems. Learn more about Greenkote.