Express Delivery [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