5/8″ x 3-1/2″ Conquest A307 Grade A Hex Bolt – Plain

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 built from carbon steel with coarse 11 TPI threading for dependable grip in light to moderate strength applications. The plain finish makes them ideal for interior construction, equipment installation, and non-corrosive maintenance tasks.

5/8″ Hex Bolts Indoor Structural Fastening

Compliant with ASTM A307 Grade A standards, these bolts deliver consistent tensile strength for non-critical structural jobs. Their hex head design ensures easy installation using standard tools, and the lack of coating makes them a cost-effective solution for dry environments where corrosion resistance is not required.

Key Features

• 5/8″ Diameter Carbon Steel: Delivers moderate strength for general-purpose fastening.
• 11 TPI Coarse Thread: Ensures reliable engagement in wood and mild steel substrates.
• Plain Finish: Best suited for indoor or temporary applications without moisture exposure.
• ASTM A307 Grade A Compliant: Meets standard specs for light structural and general assembly tasks.
• Hex Head Design: Easily installed with wrenches or socket tools for efficient assembly.
• Multiple Sizes Available: Flexible length and diameter options to match project needs.
• Indoor Construction Use: Ideal for framing, bracing, equipment setup, and repairs.

Common Applications

• Light structural framing in residential and commercial buildings
• Mounting equipment and brackets in dry interior environments
• Wood-to-wood and wood-to-metal fastening in general carpentry
• Assembly of non-critical support structures
• Routine repairs and indoor maintenance tasks

Installation Tips

• Pair with plain finish hex nuts and washers to ensure proper thread compatibility
• Tighten using standard hand or power tools for efficient installation
• Avoid exposure to moisture or corrosive elements unless post-installation coating is applied

California Residents: WARNING