[1000 BULK] Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/16-24 X 1/2

Engineered for high-strength fastening, the Flange Bolts Serrated Hex Washer in a Zinc finish deliver reliable performance in automotive, machinery, and outdoor applications. These case-hardened bolts combine a wide flange with a serrated hex washer to create even load distribution, anti-slip seating, and superior vibration resistance. Sized 5/16-24 x 1/2, they are built to last in challenging environments.

• Size: 5/16-24 x 1/2
• Head style: Flange with serrated hex washer
• Material: Case-hardened steel
• Finish: Zinc plated for corrosion resistance
• Thread: 5/16-24 UNC
• Applications: Automotive, equipment, outdoor, and general mechanical assemblies
• Benefits: High torque retention, reduced loosening from vibration, and even load distribution

Designed for easy integration with standard 5/16-24 UNC threads, these bolts provide excellent corrosion resistance thanks to the zinc finish, making them suitable for both indoor and outdoor use. Pair with matching nuts and washers and follow your torque specifications to ensure a secure fit.