Indicators can be used on any nut and bolt which requires observation. Wheel Nut Indicators (WNI) are made in Australia especially for the Australian environment. All our WNI are designed for each particular truck nut size so no chance of loose movement and false indications.
They are tough, made from anti-fade UV stabilized polymers and numbered to show you at a glance the nut size. The default colour is a bright safety yellow. They can be cleaned using any available detergent solutions or kerosene and are unaffected by road salts or petrochemicals.
The edges of the yellow WNI are heat sensitive so will begin to go brown when the nut gets to a temp of 123 to 125 deg Celcius. They provide a service constant visual indication of any loosening wheel nuts and also help indicate overheating brakes or possibly bearing problems.
Price is per individual item.
Single wheel nut indicator only.