[1500 BULK] Hex Lock Nuts Serrated Flange Case Harden Steel Black Oxide 5/16-18

Engineered for strength and reliability, our Hex Lock Nuts Serrated Flange in Case Hardened Steel with Black Oxide finish deliver secure locking and superior load distribution in a compact, durable package. Ideal for high-vibration environments where nuts tend to loosen, these fasteners combine a serrated flange with a built-in locking feature for dependable performance.

Key Features

• Material: Case-hardened steel for enhanced strength and wear resistance.
• Finish: Black oxide provides corrosion resistance and a stealthy, low-gloss appearance.
• Size/Thread: 5/16-18 UNC standard thread for common applications.
• Design: Serrated flange and hex lock nut construction for secure seating and locking action.
• Locking Action: Serrations help prevent loosening under vibration by gripping the mating surface.
• Flange Benefit: Integrated flange distributes bearing pressure and reduces the need for washers.

Why Use These Hex Lock Nuts

• Excellent choice for automotive, machinery, and construction projects where vibration is a concern.
• Easy installation with standard tools, enabling quick assemblies and maintenance.
• Durable, long-lasting performance in demanding industrial environments.

Specifications

• Product Type: Hex Lock Nut with Serrated Flange
• Material: Case-hardened steel
• Finish: Black oxide
• Size/Thread: 5/16-18
• Locking Feature: Serrated flange provides locking action to resist loosening

Upgrade your hardware kit with these rugged, corrosion-resistant hex lock nuts to ensure secure assemblies that stand up to vibration and heavy use.