Nylon Insert Locknut 18-8 Stainless Steel

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

The terms “18-8” and “304” are often used interchangeably in reference to Stainless Fasteners and Components. Typically provides better corrosion resistance in most indoor and mild outdoor environments compared to Zinc Plated Fasteners.

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