[65 PKG] Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/8-11 X 3

Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/8-11 x 3 are heavy-duty fasteners designed for secure, vibration-resistant connections in a variety of applications.

Designed with a flange head and serrated hex washer, these bolts distribute clamping force over a larger area and resist loosening in dynamic environments. The zinc finish provides corrosion resistance, while the case-hardened steel core delivers increased strength for demanding projects.

• Thread size: 5/8-11 UNC
• Length: 3 in
• Material: Case-hardened steel
• Finish: Zinc plating
• Head style: Flange with serrated hex washer

Ideal for automotive, industrial machinery, outdoor equipment, and other applications where a strong, vibration-resistant fastener is required.