High Quality [25 PKG] Hex Lock Nuts NU Nylon Inserts 18/8 Stainless 3/8-16

Hex Lock Nuts NU Nylon Inserts 18/8 Stainless 3/8-16 combine the reliability of a standard hex nut with the locking action of a nylon insert. Made from 18/8 stainless steel, these nuts resist corrosion in harsh environments while the nylon insert prevents loosening under vibration, delivering secure fastening in demanding applications.

Key Features

• Material: 18/8 stainless steel for excellent corrosion resistance and durability in outdoor, marine, and industrial settings.
• Locking Mechanism: Nylon insert (NU) creates friction against the bolt threads to resist loosening from vibration and dynamic loads.
• Thread Size: 3/8-16 (UNC), standard coarse thread for widely used fasteners.
• Style: Hex lock nut design provides easy wrench access and a secure fit.
• Finish: Natural stainless finish with corrosion protection.

Specifications

• Thread: 3/8-16
• Material: 18/8 stainless steel
• Insert: Nylon (NU)
• Shape: Hex

Applications

Ideal for automotive, marine, machinery, construction, and outdoor assemblies where vibration is a concern and corrosion resistance is essential. The combination of stainless steel and nylon insert makes these nuts suitable for environments exposed to moisture, salt, and temperature variations.

Installation & Care

• Use standard wrenches to tighten onto a 3/8-16 bolt.
• Avoid overtightening to prevent unnecessary wear on the nylon insert.
• Inspect the nylon insert for wear or damage; replace if the locking action diminishes.
• Clean surfaces before installation to ensure a proper lock and prevent contamination.

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State ofCalifornia to cause cancer and birth defects or other reproductive harm. For more information go tohttps://www.P65Warnings.ca.gov.