Size & Fit

Loose Wheel Nut Indicators must be fitted correctly, with the correct size and pattern application. This is essential to their effectiveness.

S I Z E Extended Wheel Nut Indicators: These indicators are suitable for both recessed wheel nuts and fully exposed wheel nuts. For the correct Extended Indicator size, you will need to measure 2 things - the wheel nut diameter and the recess depth.

1) To measure the wheel nut diameter, we recommend that you use a Vernier Gauge or well-fitting socket set. As there is only 1 to 2 millimeters difference in our sizes, an accurate measurement is imperative.

2) To measure the wheel nut recess, measure from the hub face to the face of the wheel nut.Our Extended Wheel Nut Indicators commonly come in 2 lengths:

38mm, to suit up a wheel nut recessed up to 38mm (in black, red, orange, yellow and green) and;
65mm to suit wheel nuts recessed 38mm to 65mm (yellow ONLY).

Indicators with a length of 40mm and 45mm, in a limited number of wheel nut sizes, are also available in yellow only and in bulk only.

Wheel Nut Diameter Measurement in MM X Wheel Nut Recess Depth Measurement in MM = Extended Indicator Size

S I Z E Standard Wheel Nut Indicators: These indicators are suitable for fully exposed wheel nuts. You will only need to measure the wheel nut diameter. We recommend that you use a Vernier Gauge or well-fitting socket set. As there is only 1 to 2 millimeters difference in our sizes, an accurate measurement is imperative.

F I T You will be able to fit your indicators yourself. They are fixed firmly to the wheel nut by gripping the six corners of the nut’s hexagon. The indicator should fit very firmly on the nut.

P A T T E R N A P P L I C A T I O N The indicators must be set in a uniform pattern. Any pattern will work as long as movement (loosening off) of indicators is clearly visible. The indicator's pointer must have room to move in the direction of the wheel nut, if it was loosening off. It should not be aligned against the rim or hub, preventing the pointer from indicating loosening.

When the chosen, uniform pattern is checked regularly, any deviations from this pattern will alert you to a loosening or missing nut and allow you to take immediate action.

1. 2.

The NutWare Safety Orange Extended Wheel Nut Indicator. The pattern application in picture 1 shows that wheel nuts are safe. The disruption to the normal pattern in picture 2 indicates that a wheel nut has come loose and immediate action should be taken.

B E F O R E F I T T I N G Check all wheel nuts, studs, rims and threads for damage. If everything is in order, torque wheel nuts to the manufacturer’s recommendations for your vehicle and fit your Loose Wheel Nut Indicators.

After as little as 25km - 100 km (or one good country drive!) from torquing, it is recommended that you check your wheel nuts again and re-torque - (this should also be done after any routine maintenance or tyre change).

Wheel nut indicators are not intended to replace your regular or recommended preventative safety maintenance. They are complementary to this program, providing an on the spot, real time alert, when fitted correctly.

Please continue your regular maintenance program - check wheel nuts, studs, rims and threads for damage and re-torque as required as per the manufacturer’s recommendations for your vehicle.