Value Collection 781468PS Carriage Bolt 1/2-13 5 in Square Neck

Product Description

The VALUE COLLECTION 781468PS is a 1/2-13 carriage bolt with a 5-inch length under the head, manufactured from 18-8 stainless steel with a bright uncoated finish. The square neck beneath the domed head locks into wood or structural members to prevent rotation during installation, eliminating the need for a wrench on the bolt side. At 0.291 pounds, this fastener is suited for structural assembly, equipment mounting, and general fabrication work where corrosion resistance is a priority. Tradespeople across plumbing, HVAC, electrical, and general mechanical work rely on this bolt type for secure, low-maintenance connections in demanding environments.

This carriage bolt is appropriate for through-bolt applications in wood framing, metal channel, and structural brackets. The 1/2-13 UNC thread is a standard coarse-thread designation compatible with standard 1/2-13 nuts and washers. The 18-8 stainless steel construction makes it a practical choice for indoor and outdoor installations where moisture, humidity, or mild chemical exposure could accelerate corrosion in carbon steel fasteners. Common uses include equipment base mounting, strut channel assembly, and utility hardware connections in commercial and residential trade work.

Key Features

• 1/2-13 UNC coarse thread for compatibility with standard nuts and tapped hardware
• 5-inch length under head for through-bolt applications in thicker assemblies
• Square neck design prevents bolt rotation during nut tightening without a second tool
• 18-8 stainless steel provides strong corrosion resistance in wet or humid environments
• Bright uncoated finish with no plating to flake, peel, or interfere with fit
• Inch measurement system with standard UNC thread form

Compatibility

Designed for use with standard 1/2-13 UNC hex nuts, flange nuts, and flat or lock washers in typical structural and mechanical fastening applications.

Installation Notes

Installation is performed by inserting the bolt through a pre-drilled hole sized for a 1/2-inch shank, then seating the square neck into a square hole or recessed bearing surface to prevent spin. A standard open-end or socket wrench is used on the nut side only. Always ensure the mating surface is clean and the hole is properly sized to allow the square neck to seat fully before applying torque. Stainless steel fasteners are susceptible to galling — apply anti-seize compound to the threads when assembling in metal-to-metal contact to prevent thread seizure.