Fractional Sizes Low Carbon Steel A307 Grade A Hex Tap Bolt with Clear Cr3 Zinc Plating

Fractional Size A307 Grade A Hex Tap Bolts with Clear Cr3 Zinc Plating

Fractional size low carbon steel A307 Grade A hex tap bolts are versatile, fully threaded fasteners designed for reliable performance in general construction and mechanical applications. Manufactured from low carbon steel and finished with clear Cr3 zinc plating, these hex tap bolts provide dependable strength, corrosion resistance, and consistent thread engagement in tapped holes or nut applications.

What Is A307 Grade A?

ASTM A307 Grade A covers low carbon steel bolts intended for general-purpose fastening. These fasteners are designed for non-critical structural connections where high tensile strength is not the primary requirement but reliability and uniform performance are essential.

Key mechanical characteristics include:

• Minimum tensile strength of approximately 60,000 PSI

• Good ductility and ease of installation

• Suitable for light to medium-duty structural assemblies

A307 Grade A hex tap bolts are commonly specified in commercial construction, wood-to-steel connections, and maintenance applications.

Fractional Sizes and Thread Options

Common Fractional Diameters

Fractional size hex tap bolts are available in standard inch diameters such as:

• 1/4"

• 5/16"

• 3/8"

• 1/2"

• 5/8" and larger

These bolts typically feature UNC (coarse) threads for improved grip and easier installation in steel or tapped components. Because they are fully threaded, they provide maximum thread engagement along the entire shank.

Clear Cr3 Zinc Plating Benefits

Clear Cr3 (trivalent chromium) zinc plating enhances corrosion resistance while meeting modern environmental compliance standards. Unlike older hexavalent finishes, Cr3 plating provides effective rust protection without harmful chemicals.

Benefits include:

• Bright, clean silver appearance

• Moderate corrosion protection for indoor and light outdoor use

• Smooth thread engagement

• RoHS-compliant finish

Applications and Advantages

Fractional size A307 Grade A hex tap bolts with clear Cr3 plating are widely used in:

• General construction projects

• Equipment assembly

• HVAC installations

• Agricultural equipment

• Maintenance and repair operations

Why Choose A307 Grade A Hex Tap Bolts?

• Cost-effective fastening solution

• Reliable performance in non-critical applications

• Full-length threading for secure hold

• Corrosion-resistant zinc finish

For dependable general-purpose fastening, A307 Grade A hex tap bolts with clear Cr3 plating deliver strength, compliance, and long-term value.