Proactively secure your fleet and eliminate the risk of loose wheel nuts with the Checklock SQ®, the market-leading stainless steel wheel nut retainer. Unlike standard visual indicators, the Checklock SQ® is an advanced, active safety device that physically locks adjacent nuts together. This makes it virtually impossible for safety-critical nuts to loosen due to vibration, thermal changes, or settling, providing an unparalleled level of security for your vehicles and machinery.
