Value Collection CAI505003000-025B Carriage Bolt 1/2-13 3in

Product Description

The VALUE COLLECTION CAI505003000-025B is a 1/2-13 carriage bolt with a 3-inch length under head, designed for structural fastening applications in construction, equipment assembly, and mechanical installations. The square neck seats flush into wood or pre-drilled substrates to prevent rotation during tightening without requiring a wrench on the bolt head. Manufactured from Grade 5 steel with a zinc-plated finish, this bolt delivers solid tensile strength with basic corrosion resistance suited for general indoor and sheltered outdoor use. Trade professionals in construction, plumbing rough-in, electrical panel mounting, and general mechanical work will find this a standard-duty fastener for a wide range of structural connections.

This carriage bolt is suited for wood-to-wood, wood-to-metal, and light structural connections in residential and light commercial jobsite applications. The 1/2-13 UNC thread is a widely used coarse-thread designation compatible with standard hex nuts and washers of the same thread size. The zinc plating provides a protective layer against light moisture exposure, making this bolt appropriate for interior framing, utility connections, equipment mounting, and similar trade applications where a secure, rotation-resistant fastener is needed.

Key Features

• 1/2-13 UNC coarse thread for compatibility with standard hardware
• 3-inch length under head for medium-depth fastening applications
• Square neck design prevents bolt rotation during nut tightening
• Grade 5 steel construction for reliable tensile and shear strength
• Zinc-plated finish provides basic corrosion resistance for general use

Compatibility

Designed as a standard 1/2-13 UNC carriage bolt for use with compatible hex nuts, flat washers, and lock washers in general structural and mechanical fastening applications.

Installation Notes

Installation is performed by tradespeople and general contractors using standard hand tools. Insert the bolt through a pre-drilled hole sized for the shank, allowing the square neck to seat and lock against the substrate before threading the nut. Tighten the nut with a wrench to the appropriate torque per project specifications or applicable structural standards. Do not over-drive or use impact tools in a manner that strips the square neck seat or damages the zinc coating.