Fractional Size A307 Grade A Carriage Bolt with Clear Cr3 Zinc Plating

Fractional Size A307 Grade A Carriage Bolt with Clear Cr3 Zinc Plating

Fractional Size A307 Grade A Carriage Bolts with Clear Cr3 Zinc Plating provide dependable fastening performance for wood-to-wood and wood-to-metal applications in construction, manufacturing, and general repair projects. Designed with a smooth domed head and square neck, these carriage bolts deliver secure clamping strength while maintaining a clean, finished appearance. The addition of Clear Cr3 zinc plating enhances corrosion resistance, making them suitable for indoor and light exterior environments.

A307 Grade A Strength for General-Purpose Fastening

Manufactured to ASTM A307 Grade A specifications, these carriage bolts are produced from low carbon steel and designed for general structural and non-critical load applications. A307 Grade A hardware offers reliable tensile strength for fastening lumber, framing components, decking supports, fencing, and light-duty structural assemblies. Their ductile composition reduces brittleness while ensuring consistent performance under moderate loads.

Domed Head with Square Neck Design

The hallmark of a carriage bolt is its smooth, round domed head, which provides a clean, finished look without exposed wrench flats. Beneath the head, the square neck locks into wood or soft material during tightening, preventing the bolt from spinning. This anti-rotation feature allows for easy installation using a wrench or socket on the nut side only, making it efficient for construction and field applications.

Clear Cr3 Zinc Plating for Corrosion Protection

The Clear Cr3 (trivalent chromium) zinc coating delivers enhanced protection against rust and oxidation while maintaining a bright, silver appearance. This RoHS-compliant finish provides improved corrosion resistance compared to plain steel, making it ideal for interior projects and covered outdoor structures where moisture exposure is moderate.

Key Specifications

• Size: Fractional diameters

• Grade: ASTM A307 Grade A

• Finish: Clear Cr3 Zinc Plated

• Head Style: Round domed head with square neck

Fractional Size A307 Grade A Carriage Bolts with Clear Cr3 Zinc Plating offer strength, corrosion resistance, and clean aesthetics for versatile, professional-grade fastening solutions.