1/2-13 x 5 Galv Coarse Hex Bolt, Grade 2, Box/25

Overview

The 1/2-13 x 5 Galvanized Coarse Hex Bolt (05406) is designed for heavy-duty fastening applications requiring a standard hex-drive interface and corrosion-resistant finish.

Technical Features

• Hexagonal head design: Engineered to be driven by a standard open-end, box, or socket wrench, allowing consistent torque application and secure installation.
• 1/2-13 UNC coarse thread: Coarse thread pitch provides faster engagement and greater resistance to cross-threading compared to fine-thread fasteners, making it well-suited for field assembly.
• 5-inch length: Accommodates thicker material stacks and structural assemblies where shorter fasteners would not achieve adequate thread engagement.
• Grade 2 classification: Meets ASTM standards for low-carbon steel fasteners, appropriate for general-purpose structural and non-critical load-bearing applications.
• Galvanized finish: Zinc coating provides a barrier against oxidation and corrosion, extending service life in outdoor or moisture-exposed environments.
• Sold in a box of 25: Packaged in contractor-friendly quantities to support project-scale purchasing and inventory management.

Applications

• General construction framing and structural assembly
• Outdoor lumber connections, decking, and fencing where corrosion resistance is required
• Agricultural and utility structures exposed to the elements
• Mechanical assemblies and equipment mounting requiring a wrench-driven hex fastener
• Maintenance and repair work on existing galvanized or steel structures