Please check size required before ordering.
The size refers to the 'across the flats' dimension of the wheel nut hexagon in millimetres.
Checkpoint® is a loose wheel nut indicator that is used extensively by the transport industry to enhance fleet safety by allowing accurate monitoring for loose wheel nuts and helps prevent wheel hub damage or the loss of a road wheel should a wheel nut loosen.
The Checkpoint® is fixed to the wheel nut by gripping the six corners of the hexagon of the wheel nut. When the wheel is being fitted out the Checkpoint pointers should be aligned and set in a recognisable pattern.
Should a wheel nut loosen off, the Checkpoint® has no option but to move with the nut and so break the pattern, thus indicating the wheel nut has begun to loosen.
It is manufactured from Polyethylene suitable for heavy-duty applications and is UV stabilised. The wheel nuts must be torqued to the recommended value before the Checkpoints® are fitted.
The Checkpoint® should be a tight slide fit onto the wheel nut without the need for tools or any other assistance. Fit the Checkpoint® so that the raised rim of the collar is outermost from the wheel nut washer, or the profile of the wheel. This eases removal by giving a finger purchase on the collar rim of the Checkpoint® without damage.
It is important to remember, when arranging the pattern you will use as the layout for the Checkpoint® on the wheel, that should a wheel nut loosen off, the Checkpoint® pointer needs room to move to indicate that the wheel nut has moved; this is normally anti clockwise.
The length of the pointer should not therefore be aligned against the wheel rim profile, which could restrict movement.
(One order = 50 wheel nut indicators
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