5/16″ x 1/2″ Conquest A307 Grade A Fully Coarse Threaded Hex Bolt – Hot Dip Galvanized Finish

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 5/16″ diameter Conquest A307 Grade A Fully Threaded Hex Bolts are engineered for reliable fastening where full-thread engagement and corrosion resistance are essential. With 18 TPI coarse threads and a hot dip galvanized finish, theyre ideal for securing wood or metal in decks, frames, and structural repairs.

5/16″ A307 Fully Threaded Hex Bolts Hot Dip Galvanized for Outdoor Use

Manufactured from carbon steel and meeting ASTM A307 Grade A standards, these bolts are designed for non-critical structural applications in outdoor or high-moisture environments. The fully threaded shank ensures consistent holding strength across varying material thicknesses, while the hex head allows for efficient installation using standard tools.

Key Features

• 5/16″ Diameter Carbon Steel: Delivers reliable performance for light-duty structural connections.
• 18 TPI Coarse Threads: Offers strong engagement and adjustable clamping in wood or metal substrates.
• Fully Threaded Shank: Ensures full-length grip for flexible fastening across variable materials.
• Hot Dip Galvanized Finish: Provides long-term protection in wet, corrosive, or outdoor environments.
• ASTM A307 Grade A Compliant: Built to recognized industry standards for general-purpose use.
• Hex Head Design: Installs easily with common wrenches or sockets.
• Versatile Outdoor Use: Ideal for decking, fencing, framing, and maintenance work.

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