Pack of 100 Yellow Checkpoint Indicators 32 mm
Checkpoint is a loose wheel nut indicator.
Used extensively by the transport industry.
Its use allows accurate monitoring for loose wheel nuts to help prevent wheel hub damage or loss of a road wheel should a wheel nut loosen.
The Yellow Checkpoint Indicators are fixed by gripping the six corners of the hexagon of the wheel nut. The Checkpoint pointers should be aligned and set in a recognisable pattern.
Should a wheel nut loosen off the Checkpoint will move with
the nut and so break the recognisable pattern indicating the
wheel nut has begun to rotate and loosen.