To monitor wheel security and hub temperature on commercial vehicles, this loose wheel nut indicator fits hardware ranging from 1-3/16" (30.2 mm) to 1-1/2" (30 mm to 38 mm). The chemical-resistant polymer construction installs without tools on any nut shape, including 8 or 10-sided custom hardware. It withstands heat from heavy braking but melts if the hub overheats to alert the driver of mechanical issues, using a non-stick material that can be removed without damaging the wheel or lug nuts.

To monitor wheel security and hub temperature on commercial vehicles, this loose wheel nut indicator fits hardware ranging from 1-3/16" (30.2 mm) to 1-1/2" (30 mm to 38 mm). The chemical-resistant polymer construction installs without tools on any nut shape, including 8 or 10-sided custom hardware. It withstands heat from heavy braking but melts if the hub overheats to alert the driver of mechanical issues, using a non-stick material that can be removed without damaging the wheel or lug nuts.