The Conquest Grade 8 Indented Flange Bolt is built for jobs where failure isnt an option. Engineered for maximum tensile strength and durability, this bolt is a go-to solution across high-load applications in construction, manufacturing, and heavy equipment maintenance. Whether you’re fastening structural steel, securing large assemblies, or replacing OEM hardware, these flange bolts bring the heat, no washers needed.

Manufactured from premium-grade alloy steel and designed with a built-in indented flange, each bolt distributes load more evenly while minimizing surface damage. That means fewer parts, faster installs, and less hassle. The plain finish keeps it cost-effective for interior and controlled environments where corrosion isnt a primary concern.

Available in multiple diameters and lengths, this bolt line is built to match your specs and your schedule.

Key Features:

• Grade 8 Alloy Steel: Delivers h
  

3/8″ x 1-1/2″ Conquest Grade 8 Indented Flange Bolt

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 Indented Flange Bolt is a high-performance fastener designed for serious structural and mechanical applications. Precision-engineered from tough Grade 8 alloy steel, it offers exceptional tensile strength and durability where reliability is non-negotiable.

Flange Bolts for Structural Connections

This bolt features an integrated indented flange head that acts as a built-in washer, distributing clamping force more evenly and reducing the need for additional hardware. The plain finish offers a cost-effective option for indoor or low-exposure environments, where corrosion resistance isnt critical.

Key Features

• Grade 8 Alloy Steel: Provides superior tensile and yield strength for high-load demands.
• Indented Flange Head: Expands the load area, reducing surface damage and eliminating washer needs.
• Plain Finish: Ideal for interior use or protected installations where coating isnt necessary.
• Coarse Thread (16 TPI): Enables quick, reliable fastening with excellent grip.
• Precision Machined Threads: Ensures smooth thread engagement and consistent holding power.

Common Applications

• Structural steel bolting in commercial and industrial construction
• Assembly and maintenance of agricultural and heavy-duty machinery
• Automotive frame, suspension, and chassis installations
• Industrial machinery builds and repairs requiring high-strength fastening
• OEM hardware replacement in equipment where tensile reliability is critical

Installation Tips

• Always use with matching Grade 8 nuts to maintain load capacity and thread compatibility
• Torque to spec per ASTM A354 or SAE J429 guidelines to prevent thread damage or bolt failure
• Inspect threads before installation; clean and align properly to ensure smooth engagement
• Do not overtighten, built-in flange provides proper load distribution without additional washers
• Use in dry, protected environments to maximize bolt lifespan with plain finish

California Residents: WARNING