Torque-Tight™ 21mm Lug Nut Indicators, Visual Safety Markers for Wheel Torque (Orange) – F-Series, F-450, F-550, Trailers – Made in USA - 100 Pack

Torque-Tight 21 mm Lug Nut Indicators are engineered for Ford Super Duty, medium-duty commercial vehicles, and vehicles using 21mm lug nuts, making them a smart choice for fleets running medium-duty trucks and service vehicles. These bright orange markers rotate with the lug nut to provide a simple, visual warning of torque loss or wheel fastener movement. Molded from UV-stable, high-impact LDPE, Torque-Tight indicators are built to handle heat, cold, vibration, and road salt without cracking or fading. Each piece installs in seconds with no tools required, giving drivers and technicians an instant way to confirm wheel safety during pre-trip and post-trip inspections. Sold in 100-count resealable packs, they’re sized right for shops and smaller fleets that want to improve compliance and reduce the risk of roadside failures. Key Benefits: Designed for 21 mm lug nuts on Ford and GM medium-duty trucks Provides a fast, visual check to detect loose or rotated lug nuts Helps fleets stay ahead of DOT inspections and roadside safety checks Durable construction tested for year-round use in harsh environments Made in the USA for reliability and consistent supply

• ✅ Quick Visual Check: 21mm indicators rotate with lug movement to warn of loosening
• ✅ Fleet Fit: Common on Ford F-Series (F-450/F550), medium-duty commercial vehicles, and vehicles using 21mm lug nuts
• ✅ Durable Construction: Made from high-impact, weather-resistant LDPE
• ✅ Pack Size: 100 indicators in a resealable bag, ideal for shops and small fleets
• ✅ Bright Orange Visibility: Easily spotted during low-light inspections