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SKU: SB-34X612
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3/4" x 6-1/2" Conquest A325 Type 1 Heavy Hex Structural Bolt, Plain

Lengths

1-1/2" 1-3/4" 2" 2-1/4" 2-1/2" 2-3/4" 3" 3-1/4" 3-1/2" 3-3/4" 4" 4-1/4" 5" 5-1/4" 5-1/2" 6" 6-1/2" 7" 7-1/2" 8-1/2" 9" 9-1/2" 10" 12"

Thread Length

Fully Threaded 1.38"
$649
Ships Nov 13 when you order now

Description

3/4" x 6-1/2" Conquest A325 Type 1 Heavy Hex Structural Bolt with Plain Finish 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.

Conquest A325 Type 1 Heavy Hex Structural Bolts in 3/4" diameter are designed for strength-critical steel-to-steel connections in bridges, buildings, and infrastructure projects. Manufactured to ASTM F3125 standards and A325 specifications, these bolts deliver the performance and reliability demanded in high-load structural applications.

A325 Type 1 Bolts for Bridge Framing and High-Strength Assemblies

These bolts feature a 1-3/8" threaded section with 10 threads per inch and a coarse thread profile, ensuring secure engagement in structural joints. The heavy hex head maximizes clamping force and torque distribution, making them the preferred choice for steel fabricators and field crews working on infrastructure and industrial frames.

Key Features

  • 3/4" Diameter Carbon Steel: Provides the strength required for structural steel assemblies.
  • 1-3/8" Thread Length: Designed for efficient engagement in thick steel connections.
  • 10 TPI Coarse Thread: Offers strong bite and torque control in load-bearing applications.
  • ASTM F3125 / A325 Compliant: Meets rigorous standards for structural bolting performance.
  • Heavy Hex Head: Enables higher torque application and better load distribution.
  • Purpose-Built for Steel Connections: Ideal for bridges, buildings, and steel frameworks.
  • Trusted by Industry Professionals: Used by contractors and engineers in critical projects.

Common Applications

  • Structural steel connections in bridges and highways
  • Steel frame assembly in commercial and industrial buildings
  • High-strength bolting for columns, girders, and braces
  • Steel-to-steel joints in large-scale infrastructure projects
  • Fabrication and erection of pre-engineered metal buildings

Installation Tips

  • Use with heavy hex nuts and hardened washers with the same finish/standards to ensure proper fit and load transfer
  • Follow approved tensioning methods such as calibrated wrench or turn-of-nut for proper preload
  • Verify bolt length allows for full thread engagement and minimum thread exposure as per project specs

California Residents: WARNING

Specifications
Grade: A325 Type 1
Diameter: 3/4"
Length: 6-1/2"
Thread Length: 1.38"
Thread Type: Coarse
Threads Per Inch: 10
Head Type: Hex Head
Material: Type 1 Carbon Steel
Finish: Plain
Type: A325 Type 1
Product Weight: 0.94 lbs.
Manufacturer Name: Conquest Fasteners
Quantity: 1 Bolt

Reviews
(11)

Customer Reviews

Based on 11 reviews
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C
Cliff Anderson
Plus is for service

Have used them a couple times. Friendly , helpful and knowledgeable. Can't ask for anything more.

T
Thomas Jodlowski

3/4" x 2" Conquest A325 Type 1 Heavy Hex Structural Bolt, Plain

J
Jeffery Fillers
Hex heavy bolts

Exactly what I ordered and quick delivery

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