Value Collection -32164-21/2 Carriage Bolt 3/8-16 2.5in

Product Description

The VALUE COLLECTION -32164-21/2 is a fully threaded carriage bolt designed for general fastening applications in structural and mechanical assemblies. It features a 3/8-16 UNC thread and a 2.5-inch length under head, making it a standard choice for wood-to-wood and wood-to-metal connections. The rounded dome head and square neck prevent rotation during tightening without requiring tool access on the bolt side. Finished in clear zinc chromate, the bolt carries Grade 5 steel construction and meets SAE J429 standards. Installers in construction, equipment fabrication, and general mechanical work will find this bolt well-suited for medium-strength fastening tasks.

This carriage bolt is used in residential and commercial construction, light structural framing, equipment mounting, and general trade assembly work. The 3/8-16 thread is one of the most common fastener sizes in inch-measurement applications, making this bolt compatible with a wide range of standard hardware and nut stock. The fully threaded shank provides maximum thread engagement across the full 2.5-inch length under head.

Key Features

• 3/8-16 UNC fully threaded shank for maximum thread engagement
• 2.5-inch length under head suits standard framing and structural connection depths
• Square neck under the dome head locks bolt in place during nut installation
• Grade 5 steel construction meets SAE J429 for medium-strength fastening
• Clear zinc chromate finish provides corrosion resistance in general service environments

Compatibility

Designed as a standard inch-series carriage bolt for use with 3/8-16 UNC nuts and hardware in wood, metal, and composite structural applications conforming to SAE J429 fastener standards.

Installation Notes

Installation is typically performed by carpenters, millwrights, or general contractors using standard hand tools. Insert the bolt through the pre-drilled hole so the square neck seats flush into the substrate to prevent spinning, then thread the nut from the opposite side and torque to specification per the applicable structural or equipment standard. Always use a properly sized hole to ensure the square neck locks correctly. Refer to applicable building codes or equipment manufacturer guidelines for torque and fastener spacing requirements.