Value Collection 5040CGNFG Carriage Bolt 1/2-13 2-1/2 Inch

Product Description

The VALUE COLLECTION 5040CGNFG is a 1/2-13 UNC carriage bolt with a 2.5-inch length under head and a square neck that locks the fastener in place as the nut is tightened. Manufactured from Grade 1006-1050 steel with a galvanized zinc-plated finish, it resists corrosion in general-purpose structural and mechanical applications. The bolt is fully threaded along its 2.5-inch shank, conforming to ASME B18.5 dimensional standards. It is a standard inch-system fastener installed by ironworkers, carpenters, maintenance mechanics, and general contractors in light to medium structural connections.

This carriage bolt suits residential and commercial construction, wood-to-wood and wood-to-metal connections, and general structural assembly work. The square neck below the rounded head embeds into wood or a square-punched hole in metal, preventing rotation during nut installation. Applications include deck framing, timber connections, equipment mounting, and utility structures where a flush, smooth bolt head is required on the bearing face.

Key Features

• 1/2-13 UNC thread size for broad compatibility with standard nuts and hardware
• 2.5-inch length under head suits medium-depth structural connections
• Square neck prevents rotation during tightening without a secondary tool on the bolt head
• Fully threaded shank allows flexible nut positioning along the entire length
• Galvanized zinc-plated finish provides corrosion resistance for indoor and sheltered outdoor use
• Conforms to ASME B18.5 for dimensional consistency and interchangeability

Compatibility

Designed as a standard inch-system carriage bolt compatible with 1/2-13 UNC hex nuts, washers, and threaded inserts used in general structural and mechanical fastening applications.

Installation Notes

Installation is typically performed by carpenters, ironworkers, or maintenance mechanics using a standard wrench or socket on the nut side. Insert the bolt through the pre-drilled hole so the square neck seats fully before applying the washer and nut. Do not use an impact wrench at high torque settings without confirming the square neck is fully engaged, as spinning can damage the surrounding material. Follow applicable building codes and structural design specifications for required fastener torque values and spacing.