Hardlock Nuts are used on information boards in expressway service areas to show parking availability and other updates to drivers. Because these boards are in areas with heavy use and exposure to the elements, reliable anti-loosening measures are essential for safety and durability.

• Areas with strong wind and vibration, like highways.
• Coastal regions where corrosion is common.
• Applications that require long-lasting fastening solutions.

• No more double nut tightening: They are easier and quicker to install compared to standard double nuts.
• Protects threads: The unique design prevents damage when tightening bolts.
• Less maintenance: With extended durability, the time and cost of maintenance are significantly reduced.

• Improves safety by reducing the risk of loose parts.
• Performs well even in harsh weather conditions.
• Ideal for both new installations and upgrades of existing systems.