1-1/8″ x 2-3/4″ Conquest A325 Type 1 Fully Coarse Threaded Heavy Hex Structural 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.

Conquest A325 Type 1 Fully Coarse Threaded Heavy Hex Structural Bolts are precision-engineered for high-load structural connections in steel frameworks. These bolts are manufactured to ASTM F3125 (A325) specifications and feature a plain finish for use in indoor or controlled environments where corrosion protection is not a primary concern.

Designed for Steel-to-Steel Connection Strength

With a fully coarse threaded shank and a heavy hex head, these bolts deliver maximum clamping force and load-bearing performance. They’re ideal for steel-to-steel assemblies in bridges, buildings, and heavy infrastructure applications, offering unmatched durability and strength where it matters most.

Key Features

• ASTM F3125 / A325 Type 1 Certified: Compliant with structural bolting standards for high-strength steel assemblies.
• Fully Threaded Shank: Enables complete thread engagement for through-bolting and layered steel assemblies.
• Plain Finish: Suitable for interior applications or projects with external corrosion control methods.
• Heavy Hex Head: Provides superior torque handling and surface load distribution.
• Carbon Steel Construction: Delivers dependable structural strength and integrity.
• Application Use: Trusted in bridge construction, structural steel frameworks, and steel-to-steel fastening systems.

Common Applications

• Structural steel framing in highway bridges and overpasses
• Beam-to-column connections in industrial and commercial buildings
• Assembly of large steel trusses and girders
• Fastening steel members in infrastructure and heavy construction
• Steel fabrication requiring high-strength, corrosion-resistant bolting

Installation Tips

• Pair with galvanized nuts and hardened washers of matching finish to ensure corrosion resistance and fit
• Torque to spec using approved installation methods such as turn-of-nut or calibrated wrench techniques
• Inspect all mating surfaces and threads for cleanliness before installation to ensure full engagement and structural integrity

California Residents: WARNING