5/8″ x 14″ Conquest A307 Grade A Hex Bolt with 6″ Thread – 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.

Conquest A307 Grade A Hex Bolts in 5/8″ diameter feature a 6″ coarse thread (11 TPI) and are engineered to perform in tough outdoor environments. Built from carbon steel and hot dip galvanized for superior rust protection, theyre trusted in construction projects where strength, durability, and long-lasting grip are essential.

5/8″ Hex Bolts for Timber, Framing, and Steel Assemblies

Manufactured to ASTM A307 Grade A standards, these bolts deliver consistent performance in decks, fencing, infrastructure, and post-frame buildings. The extended 6″ threaded section offers deep engagement across various substrates, while the hex head design ensures easy, torque-tight installation with standard tools.

Key Features

• 5/8″ Diameter Carbon Steel: Offers dependable strength for medium-duty structural and general construction.
• 6″ Coarse Thread Length (11 TPI): Ensures deep, secure engagement across diverse materials.
• ASTM A307 Grade A Compliant: Built to meet structural standards for general-purpose use.
• Hot Dip Galvanized Finish: Protects against corrosion in outdoor and high-moisture applications.
• Hex Head Design: Compatible with common sockets and wrenches for fast, secure installation.
• Versatile Field Use: Ideal for decks, post-frame buildings, fencing, and structural repairs.
• Built for Pros and DIYers: Trusted by contractors, builders, and facilities managers alike.

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