Fractional Size A325 Type 1 Heavy Hex Structural Bolt with Plain Finish

Fractional Size A325 Type 1 Heavy Hex Structural Bolt with Plain Finish

The Fractional Size A325 Type 1 Heavy Hex Structural Bolt with Plain Finish is a high-strength fastener engineered for critical steel-to-steel structural connections. Designed to meet ASTM A325 Type 1 specifications, this heavy hex structural bolt is widely used in commercial construction, bridge fabrication, industrial buildings, and infrastructure projects where dependable clamping force and load capacity are essential.

Manufactured from medium carbon steel and heat-treated for enhanced mechanical properties, A325 Type 1 bolts deliver consistent tensile strength and reliable performance in high-load environments.

Engineered to ASTM A325 Type 1 Standards

A325 Type 1 heavy hex bolts are specifically designed for structural steel assemblies requiring pre-tensioned installation. The heavy hex head provides a larger bearing surface than standard hex bolts, ensuring improved load distribution and greater wrench engagement during installation.

Key Specifications and Features

• Fractional inch diameters for standard structural applications

• Heavy hex head for increased strength and stability

• Heat-treated medium carbon steel construction

• Designed for use with hardened washers and heavy hex nuts

• Suitable for slip-critical and bearing-type connections

The plain finish provides a clean, uncoated steel surface, making these bolts ideal for interior structural assemblies or applications where additional coatings or field treatments may be applied.

Plain Finish Benefits in Structural Applications

A plain finish A325 structural bolt offers flexibility for projects that require custom coatings, painting, or controlled environmental use. Without a zinc or galvanized layer, the bolt maintains precise dimensional tolerances and predictable torque-tension characteristics.

Advantages of Plain Finish Structural Bolts

• Ideal for interior steel framing

• Suitable for controlled environments

• Compatible with project-specific coating systems

• Reliable torque performance during installation

Common Applications

Fractional Size A325 Type 1 Heavy Hex Structural Bolts with Plain Finish are commonly specified for:

• Structural steel erection

• Industrial plant construction

• Equipment support frames

• Warehouse and commercial building assemblies

• Bridge components in protected environments

For contractors, engineers, and steel fabricators, these high-strength structural bolts provide the performance, compliance, and reliability required for demanding structural fastening applications.