3/8″ x 2-1/4″ Conquest Grade 8 Non-Serrated Flange Bolt With Yellow Zinc Finish

When pairing a nut with a hex bolt, the material and finish must match. If these do not match, the nut will not fit the bolt.

The 3/8″ Conquest Grade 8 Non-Serrated Flange Bolt is engineered for strength and precision. Constructed from Grade 8 alloy steel and coated in a corrosion-resistant zinc yellow finish, this flange bolt is built for high-load industrial, automotive, and structural applications.

Built-In Flange. Surface-Safe. Reliable Under Load.

Its integrated flange spreads out clamping force, reducing the need for washers while protecting against material damage. With a non-serrated design under the head, its the go-to option for applications where surface marring is not acceptable or where bolts are seated in slotted holes.

Key Features

• Grade 8 Alloy Steel: Maximum strength for critical fastening tasks.
• Zinc Yellow Finish: Protects against corrosion while providing a clean, finished appearance.
• Flange Head Design: Distributes load evenly, minimizing the risk of surface damage.
• Non-Serrated Head: Ideal for use on painted, finished, or sensitive materials.
• Thread Spec: Coarse thread, 16 threads per inch.

Common Applications

• Structural steel framing and fabrication in construction or industrial settings
• Heavy equipment assembly including loaders, lifts, and mechanical arms
• Automotive chassis, suspension systems, and drivetrain components
• Agricultural and industrial machinery installations
• High-load bolting where vibration resistance and surface protection are critical

Installation Tips

• Torque bolts to SAE J429 specifications to ensure proper preload and bolt performance
• Use with Grade 8 nuts and hardened washers to maintain full tensile strength and load distribution
• Avoid overtightening to protect mating surfaces, especially in slotted holes or precision applications
• Inspect flange seating for flush contact to prevent loosening under vibration
• Verify the bolt length provides full thread engagement without bottoming out

California Residents: WARNING

Conquest Grade 8 Non-Serrated Flange Bolt Zinc Yellow

Built for strength. Designed for efficiency. The Conquest Grade 8 Non-Serrated Flange Bolt in a zinc yellow finish is engineered to hold tight under pressure. Whether you’re securing structural assemblies, heavy-duty machinery, or automotive frames, this bolt is built to meet the moment.

Made from high-strength Grade 8 steel, it delivers superior tensile strength for high-load applications. The zinc yellow coating provides excellent corrosion resistance and a clean, professional finish. The built-in flange acts like a washer, spreading out the load and helping reduce the chance of damaging surfaces.

With no serrations under the head, its ideal for use where surface damage must be avoided or when used in slotted holes. It’s a reliable choice when paired with hardened washers or precision fittings.

Features:

• Grade 8 Strength Manufactured for critical applications requiring high tensile performance and reliability.
• Zinc Yellow Finish Provides corrosion resistance while delivering a sharp, professional look.
• Flange Head Design Built-in flange distributes clamping force evenly, eliminating the need for a separate washer.
• Non-Serrated Head Safe for use on precision surfaces or components that require minimal marring.
• Available in Multiple Sizes Choose the diameter and length that best fits your project requirements.

Applications:

• Structural steel fabrication
• Heavy equipment assembly
• Automotive chassis and suspension
• Agricultural and industrial machinery
• Construction and repair projects where vibration resistance matters

Installation Tips:

• Torque according to SAE J429 standards for Grade 8 fasteners.
• Pair with Grade 8 nuts and hardened washers for maximum performance.
• Do not overtighten to avoid stripping threads or damaging the mating surface.

These bolts are stocked in a wide range of diameters and lengths, ready to ship same day. Explore the available options to find the right fit for your build.

California Residents: WARNING