Hillman 1/2"-13 Nylon Insert Lock Nuts – 50 Pack

Hillman 1/2"-13 Nylon Insert Lock Nuts

Keep fastenings tight under pressure. These Hillman lock nuts feature a nylon insert that grips bolt threads firmly, preventing loosening from vibration, torque, and heavy use — ideal for mechanical, automotive, and industrial applications.

• Size: 1/2"-13 thread
• Nylon insert – locks onto bolt threads to resist vibration and torque
• High-quality steel – precision-threaded for a smooth, reliable fit
• Moisture & corrosion resistant – dependable in varied environments
• Ideal for automotive, machinery, and general construction
• 50 lock nuts per pack