Value Collection CAI505003750-025BX Carriage Bolt 1/2-13

Product Description

The VALUE COLLECTION CAI505003750-025BX is a 1/2-13 UNC carriage bolt with a 3-3/4 inch length under head and a square neck design. It is manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance. The square neck seats into a pre-drilled hole to prevent rotation during tightening, eliminating the need to hold the bolt head. This fastener is sold in a minimum order quantity of 25 pieces per order and is measured using the inch system with length taken under the head. Installers and tradespeople working with structural assemblies, wood-to-metal connections, or general fabrication applications will find this bolt suits a wide range of standard fastening tasks.

This carriage bolt is suited for general construction, equipment mounting, and structural fastening in residential and light commercial applications. The 1/2-13 UNC thread pitch is a common standard in North American construction, making this bolt compatible with widely available nuts and hardware. The zinc plating provides a baseline level of corrosion resistance appropriate for dry interior and sheltered exterior installations. Electricians, plumbers, HVAC technicians, and general contractors frequently use this bolt size when securing equipment supports, unistrut assemblies, mounting brackets, and structural connections.

Key Features

• 1/2-13 UNC thread size for compatibility with standard North American hardware
• 3-3/4 inch length under head for medium-depth structural connections
• Square neck design prevents bolt rotation during nut tightening
• Grade 5 steel construction provides reliable tensile and shear strength
• Zinc-plated finish offers corrosion resistance in dry and sheltered environments
• Sold in 25-piece minimum order quantity for job-site and shop stocking

Compatibility

Designed for use with standard 1/2-13 UNC hex nuts and washers in general structural and mechanical fastening applications.

Installation Notes

Installation requires a pre-drilled hole sized to allow the square neck to seat flush and resist rotation. A standard socket wrench or open-end wrench is used to drive the mating nut. Power down or de-energize any adjacent electrical equipment before working in panel enclosures or equipment rooms. Follow applicable building codes and manufacturer torque guidelines for the specific assembly being fastened.