[600 BULK] Flange Bolts Serrated Hex Washer Case Hardened Zinc 3/8-16 X 1 1/2

Flange Bolts Serrated Hex Washer Case Hardened Zinc 3/8-16 X 1 1/2 delivers dependable strength and vibration resistance for a range of assemblies. Featuring a flange-style head with a serrated hex washer under the head, these bolts provide a large bearing surface and a secure grip in metal-to-metal connections. The case-hardened steel core, coated with a durable zinc finish, resists corrosion and delivers long-lasting performance in demanding environments.

Key features

• Size & thread: 3/8-16 UNC; length 1-1/2 inches
• Head & washer: Flange head with a serrated hex washer to bite into surfaces and resist loosening
• Material & finish: Case-hardened steel with zinc plating for corrosion resistance
• Strength & application: Designed for high-strength fastening in automotive, machinery, and construction projects
• Installation: Easy to torque and install with standard tools

Product specifications

• Diameter: 3/8 in
• Thread pitch: 16 TPI (UNC)
• Length: 1-1/2 in
• Finish: Zinc-plated
• Material: Case-hardened steel
• Type: Flange bolt with serrated hex washer

Whether you're outfitting a machine, vehicle, or heavy equipment, these flange bolts provide secure clamping and a clean, professional look. Add them to your toolkit or cart for reliable, corrosion-resistant fastening solution that stands up to vibration and wear.