The TRP Loose Wheel Nut Indicator, Checkpoint (Part No. 0868106) is an essential safety device used extensively across the commercial transport industry to enhance fleet safety and roadworthiness.

These yellow indicators are fitted onto the wheel nuts of your vehicle (typically in a recognizable pattern like point-to-point) to provide an instant visual warning of nut movement. Should a wheel nut begin to loosen, the indicator’s pointer will move out of alignment, making the issue clearly visible to the driver or inspector during a daily walk-around check, helping to prevent wheel loss or hub damage.

Additionally, this indicator is made from a specific virgin polymer that is designed to melt at a defined temperature, providing a secondary function as an overheating alert. Melting or deformation of the indicator can signal potential issues with sticking brakes or faulty bearings.

Key Features & Functions

• Visual Movement Indication: Provides immediate, clear visual detection of loose wheel nuts.

• Overheating Alert: Melts at a specific temperature (typically 125ºC / 257ºF for standard versions) to indicate excessive heat from brakes or bearings.

• Highly Visible: Bright yellow color ensures maximum visibility, even when coated in grime.

• Durable Material: Manufactured from high-quality virgin polymer, resistant to moisture, road salt, oil, and common cleaning agents.

• Cost-Effective Safety: Supports compliance with fleet safety procedures and maintenance checks (e.g., DfT, FORS, DVSA).

Product Specifications