[150 PKG] Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/8-11 X 1 1/2

Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/8-11 X 1 1/2 are high-strength fasteners designed for heavy-duty assemblies where secure clamping and corrosion resistance are essential. The combination of a flange head with a serrated hex washer provides even load distribution and anti-loosening performance in tough operating conditions.

Constructed from robust steel and finished with a zinc plating, these bolts resist rust and wear in demanding environments. The case-hardened treatment adds extra hardness to the shaft, delivering increased shear and tensile strength for reliable long-term use.