Value Collection 489114PR Carriage Bolt 1/2-13 2in Square Neck

Product Description

The VALUE COLLECTION 489114PR is a 1/2-13 carriage bolt with a 2-inch length under head, designed for structural fastening applications in wood, metal, and composite assemblies. The square neck beneath the domed head locks into the material as the nut is tightened, preventing rotation without a secondary tool on the bolt side. Manufactured from Grade 2 steel with a zinc-plated finish, this bolt meets ASTM A307 standards for low-carbon fastener applications. It is suitable for general construction, framing, and equipment mounting where UNC thread engagement and corrosion resistance are required. Installation is performed by trade carpenters, ironworkers, maintenance technicians, and general contractors.

This carriage bolt is used in residential and light commercial construction for connecting timber framing members, attaching brackets, securing gates, and anchoring equipment frames. The 1/2-13 UNC thread is a widely used size compatible with standard hex nuts, lock nuts, and flat washers available in inch-measurement tooling. The zinc plating provides baseline corrosion protection suitable for interior and sheltered exterior applications.

Key Features

• 1/2-13 UNC thread for compatibility with standard inch-system hardware
• 2-inch length under head for medium-depth fastening applications
• Square neck prevents bolt rotation during tightening without a wrench on the bolt
• Grade 2 steel construction meets ASTM A307 requirements
• Zinc-plated finish for baseline corrosion resistance
• Inch measurement system for use with standard UNC nuts and washers

Compatibility

Designed as an OEM-style replacement or standard fastener for general structural and construction assemblies requiring 1/2-13 UNC inch-series carriage bolts.

Installation Notes

Installation is performed by inserting the bolt through a pre-drilled hole so the square neck seats flush and locks against the material surface. A standard hex nut and flat washer are threaded onto the exposed end and tightened from the nut side only. Ensure the pre-drilled hole diameter matches the bolt shank to allow proper square-neck seating. Follow applicable building codes and structural specifications for torque and fastener spacing requirements.