Value Collection CAI507504500-020BX Carriage Bolt 3/4-10

Product Description

The VALUE COLLECTION CAI507504500-020BX is a 3/4-10 UNC carriage bolt with a 4-1/2 inch length under head and a square neck design. Manufactured from Grade 5 steel with a zinc-plated finish, this fastener delivers reliable tensile strength in structural and mechanical applications. The square neck locks against the material being fastened to prevent rotation during installation, eliminating the need for a wrench on the bolt head. At 0.632 pounds, it is sized for heavy-duty fastening tasks across a wide range of trade and construction work.

This carriage bolt is suited for use in wood-to-wood, wood-to-metal, and general structural connections in residential and commercial construction, equipment mounting, and fabrication applications. The zinc plating provides a basic level of corrosion resistance appropriate for indoor and protected outdoor environments. Carpenters, ironworkers, maintenance technicians, and general contractors regularly use this size in framing, machinery mounting, and structural assembly work.

Key Features

• 3/4-10 UNC thread for compatibility with standard inch-series nuts and hardware
• 4-1/2 inch length under head for deeper fastening reach in thick assemblies
• Square neck prevents bolt rotation during nut tightening without a secondary tool
• Grade 5 steel construction provides medium-high tensile and proof load strength
• Zinc-plated finish offers corrosion resistance in dry and protected environments

Compatibility

Designed as a standard inch-series carriage bolt compatible with 3/4-10 UNC hex nuts, flat washers, and lock washers in structural and general-purpose fastening assemblies.

Installation Notes

Installation is typically performed by construction tradespeople, maintenance technicians, or fabricators using a standard socket wrench or impact driver on the nut side. Insert the bolt through the pre-drilled hole so the square neck seats flush and locks into the material, then thread and tighten the nut from the opposite side. Follow applicable building code torque and fastener spacing requirements for the specific application. Do not overtighten, as Grade 5 fasteners have defined proof load limits that should not be exceeded in structural connections.