A dual indicator that links 2 nuts together. Provides a higher level of safety than the original flat versions. This is because the 2 nuts are linked it locks the nut to prevent any further nut movement after the nut has moved and thus also will prevent the nut from coming off completely. So nuts cannot fall off.
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As the 2 nuts are tensioned together if one nut moves the WNI reaches a certain tension is reached in the second nut which then prevents the first nut from moving any further. So we state that it is “pre-emptive with nut retention ability”.
Indicators can be used on any nut and bolt which requires observation.
Reduce fleet downtime and costs – increase safety – now.
Our loose wheel nut indicators and other road transport safety systems help you:
Our 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. Unlike other zip tie, clips, rachet systems out there, our system are easily pushed onto each nut that then fits to all 6 points of a hexagon nut, meaning each indicator is robust and secure.
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 ( this one depends on the amount of heat dissipation).
This generally means if wheel nut is getting this hot, you have a brake or maybe a bearing problem. Again saving your maintenance time and money, with an easy visual pickup.
There is also a high temp version that can go up to 150 degrees, it is white...same price...but these are normally only used on Garbage Trucks or trucks with history of high brake temperature.
Best to choose your size wheelnut with an exact fitting socket.
If nut is recessed on rim, easiest to place a screwdriver down the side of bolt to get approx mm of recess depth.