Value Collection CAI206201500-025BX Carriage Bolt 5/8-11

Product Description

The VALUE COLLECTION CAI206201500-025BX is a 5/8-11 UNC carriage bolt with a 1-1/2 inch length under head and a square neck drive style. Made from Grade 2 steel with a zinc-plated finish, this fastener meets ASTM A307 standards for general-purpose structural and mechanical assemblies. The square neck seats flush into timber or plate material, preventing rotation during nut installation without requiring a tool on the bolt head. This bolt is a standard inch-system fastener used across construction, HVAC equipment mounting, plumbing fixture work, and general fabrication applications.

This carriage bolt is suited for through-bolt connections in wood-to-wood and wood-to-metal assemblies where a smooth, rounded head is required on the bearing surface. Typical applications include equipment bases, structural framing connections, mounting brackets, and utility installations where a clean finished appearance on the bolt head side is specified. The zinc plating provides basic corrosion resistance appropriate for indoor and protected outdoor environments.

Key Features

• 5/8-11 UNC thread for compatibility with standard inch-system nuts and hardware
• Square neck under the head locks into substrate to prevent spinning during installation
• Grade 2 steel construction meets ASTM A307 requirements
• Zinc-plated finish provides corrosion protection in dry and semi-protected environments
• 1-1/2 inch length under head suits standard through-bolt applications in light to medium structural connections

Compatibility

Designed as a standard inch-system carriage bolt for use with 5/8-11 UNC hex nuts and washers in general construction, fabrication, and equipment mounting assemblies.

Installation Notes

Installation is typically performed with standard hand tools by construction tradespeople, millwrights, or HVAC equipment installers. Insert the bolt through a pre-drilled hole sized for the shank diameter, seat the square neck fully into the material to prevent rotation, then apply a washer and nut on the opposing side and tighten to the appropriate torque for the application per applicable structural or equipment guidelines. Do not use impact tools that may cause the square neck to strip out of softer substrates.