Grade A Nylon Insert Lock Nut Zinc Plated

Nylon Insert Lock Nuts (often called Nyloc® Nuts) are Hex Nuts with a nylon ring at the top that grips the bolt threads to prevent loosening from vibration.

How It Works:

• The bolt threads cut into the nylon insert as the nut is tightened
• This creates prevailing torque (extra resistance)

Common Uses:

• Machinery and equipment
• Automotive and light industrial assemblies
• General-purpose vibration resistance

Zinc Plated Steel Fasteners feature a thin electroplated zinc coating that provides moderate corrosion resistance. Best suited for indoor and mildly dry outdoor conditions. Prolonged exposure to moisture or humidity can degrade the coating and lead to corrosion.

FastPro Tip: Install with the nylon insert facing away from the joint (nylon engages last). Click on any product for more detailed information...