[600 BULK] Flange Bolts Serrated Hex Washer Case Hardened Zinc 1/4-20 X 3 1/2

Flange Bolts Serrated Hex Washer Case Hardened Zinc 1/4-20 x 3 1/2 deliver reliable performance in heavy-duty fastening applications. These bolts feature a flange head for broad load distribution, a serrated washer for anti-loosening grip, and a hex drive for easy installation. With case-hardened steel and zinc plating, they resist wear and corrosion in demanding environments.

• Size / Thread: 1/4-20 UNC, 3-1/2" length
• Head and Washer: Flange head with serrated hex washer for enhanced contact and anti-slip performance
• Material: Case-hardened steel
• Finish: Zinc plating for corrosion resistance
• Applications: Suitable for automotive, industrial equipment, machinery assemblies, and outdoor installations
• Benefits: High strength, reduced loosening, easier torque control with standard hex drive

Designed to provide a secure, lasting hold in challenging environments, these flange bolts are an ideal choice for projects requiring robust fastening, vibration resistance, and a clean, flush finish. Add these 1/4-20 x 3 1/2 bolts to your toolkit and ensure dependable performance across your next build.