[300 BULK] Flange Bolts Serrated Hex Washer Case Hardened Zinc 1/2-13 X 1 1/4

Meet the Flange Bolts Serrated Hex Washer Case Hardened Zinc 1/2-13 X 1 1/4, a high-performance fastener designed for secure, vibration-resistant mounting in automotive, industrial, and machinery applications.

Engineered with a rugged flange head and a built-in serrated hex washer, these bolts distribute clamping force evenly and resist loosening under dynamic loads, delivering dependable performance in challenging environments.

Key features

• Thread and length: 1/2 inch diameter, 13 threads per inch (UNC), 1-1/4 inches long.
• Finish: Zinc plated for corrosion resistance and extended service life.
• Head style: Flange head to distribute load and minimize pull-through.
• Washer: Serrated hex washer integrated to bite into surfaces and prevent loosening.
• Material: Case-hardened steel for added strength and wear resistance.

Why choose these flange bolts? They combine a broad flange, a built-in serrated washer, and a durable case-h Hardened steel composition with a protective zinc finish—delivering strong, long-lasting performance where secure fastening matters most.

Applications

• Automotive assemblies and chassis components
• Industrial machinery and equipment installations
• Construction and equipment mounting where vibration resistance is essential

Specifications at a glance:

• Thread: 1/2-13 UNC
• Length: 1-1/4 in
• Finish: Zinc
• Head: Flange
• Drive: Hex
• Washer: Serrated hex washer
• Material: Case-hardened steel