Description
This item is brand-new, factory sealed.
Features and Benefits:
- An instant visual indicator of nut movement. Indicates possible faults with breaks or bearings through melting. Melts at a specific temperature of 125C/257F. Supports fleet safety checks. Cost effective and easy to implement. The world’s first biodegradable wheel nut indicators.
The Checkpoint® visually indicates nut movement. By placing the Checkpoints in a recognisable pattern such as point to point, any movement of the nut is clearly visible at a glance. This assists the visual inspection of lug nuts, identifying when a nut loosens, to prevent the wheel from coming off. It also melts at a specific temperature (125C/257F) to highlight any overheating issues with the wheel or application.*Tested and verified by ASTM D5511 for enhanced biodegradation in biologically active landfills, saving the planet from over 200 tonnes of plastic waste each year. Checkpoint® provides a clear commitment to health and safety, and roadworthiness to other road users, and road and transportation associations such as: DfT, FORS, DVSA, HSE, FTA and RHA.

![Martins Industries CPY21 Checkpoint Wheel Nut Indicator - Yellow 21 Mm [bag Of 100 Pcs]](https://www.goodsmergeshop.com/wp-content/uploads/2026/06/cpy21__88942.1763709142.386.513.webp)
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