Secure, vibration-resistant fastening with our Hex Lock Nuts NU Nylon Inserts in a steel zinc finish, sized for 1/4-20 bolts. These self-locking nuts combine durability, reliability, and ease of use for a wide range of applications.

• Self-locking nylon insert: The durable nylon insert provides consistent friction on threads to resist loosening under vibration.
• Material and finish: High-strength steel with a corrosion-resistant zinc coating for long-lasting performance.
• Thread compatibility: Fits standard 1/4-20 bolts (UNC) for quick, universal installation.
• Hex profile: Standard hex design for easy wrenching and precise torque control.
• Versatile uses: Ideal for automotive, machinery, electronics enclosures, furniture, and general mechanical assemblies.

Whether youre building a new project or repairing existing equipment, these NU nylon insert hex lock nuts deliver dependable locking action and corrosion resistance. For best results, apply appropriate torque and ensure clean, dry threads before installation.