International Marketing I CPY21MM Checkpoint Wheel Nut Indicator 21mm Fluorescent Yellow

The Checkpoint CPY21MM is a 21mm wheel nut indicator designed to provide instant visual detection of loose lug nuts and wheel overheating issues. This fluorescent yellow polymer safety device is essential for commercial trucks, agricultural vehicles, fleet operations, and any application where wheel safety is critical.

Key Features:

• Visually indicates wheel nut movement when arranged in a recognizable point-to-point pattern
• Melts at 257°F (125°C) to highlight overheating issues with wheels, brakes, or bearings
• Constructed from high-grade virgin polymer for reliable performance
• Fits 21mm (13/16 inch) hex nuts on commercial vehicles and industrial equipment
• Contains bio-additive for enhanced biodegradation in landfill conditions
• Overall length: 56mm (2.2 inches), thickness: 7mm at wheel nut connection

The Checkpoint system enables quick pre-trip safety inspections and helps prevent wheel-off incidents by making loose nuts immediately visible at a glance. By improving visual monitoring of safety-critical fasteners, this product reduces maintenance time and costs while demonstrating commitment to roadworthiness and compliance with transportation safety standards.