5/8″ x 6-1/2″ Conquest A307 Grade A Hex Bolt – Hot Dip Galvanized

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.

These 5/8″ diameter Conquest A307 Grade A Hex Bolts are designed for dependable performance in general-purpose structural applications. Made from carbon steel and finished with a hot dip galvanized coating, they offer corrosion resistance and reliable strength in outdoor and high-moisture construction environments.

Reliable Fastening for Framing, Anchoring, and Outdoor Construction

Engineered to ASTM A307 Grade A specifications and using the Standard SAE measuring system, these bolts are ideal for wood-to-wood or wood-to-steel connections in residential, commercial, or industrial builds. Their 11 TPI coarse thread ensures strong engagement, while the hex head supports fast installation with standard tools.

Key Features

• 5/8″ Diameter Carbon Steel: Provides strength for medium-duty structural connections.
• Hot Dip Galvanized Finish: Delivers rust and moisture protection for long-term outdoor use.
• 11 TPI Coarse Thread: Ensures secure bite and efficient installation in framing and anchoring.
• ASTM A307 Grade A Compliant: Meets recognized standards for general-purpose construction fasteners.
• Standard SAE Measuring System: Matches common construction sizing for easy integration.
• Hex Head Design: Compatible with standard wrenches or sockets for jobsite efficiency.
• Built for Versatility: Ideal for decking, post-frame buildings, fencing, and concrete anchoring.

Common Applications

• Outdoor decking and fencing installations
• Wood-to-metal fastening for agricultural or utility structures
• General construction in high-moisture environments
• Repair and maintenance of outdoor wooden frameworks
• Clamping multi-layer assemblies requiring full thread engagement

Installation Tips

• Always pair with hot dip galvanized nuts and washers to maintain corrosion resistance and thread compatibility
• Tighten bolts evenly across their full length to prevent misalignment or overtightening in softer materials
• Inspect for coating buildup and clean threads if needed before installation for a smooth fit

California Residents: WARNING