Value Collection 34626 Carriage Bolt 3/8-16 1 in Zinc Steel

Product Description

The VALUE COLLECTION 34626 is a 3/8-16 carriage bolt with a 1-inch length under the head and a square neck, manufactured from Grade A steel with a zinc-plated finish. The square neck seats into the material being fastened to prevent the bolt from spinning during installation, eliminating the need for a wrench on the bolt head. Zinc plating provides a baseline level of corrosion resistance suited for general indoor and light-duty applications. This fastener meets ASTM A307 standards and is sized in the inch measurement system. It is a standard trade-supply fastener installed by electricians, plumbers, HVAC technicians, and general contractors across a wide range of construction and equipment-mounting tasks.

This carriage bolt is suited for light structural connections, wood-to-wood assemblies, and equipment mounting applications where a smooth, rounded head is required on the bearing surface. The 3/8-16 UNC thread is one of the most common inch-series thread pitches used in residential and light commercial construction. Typical applications include securing framing members, mounting brackets, and attaching components in mechanical rooms or utility installations.

Key Features

• 3/8-16 UNC thread for compatibility with standard inch-series nuts and hardware
• 1-inch length under head for shallow-depth fastening applications
• Square neck design prevents bolt rotation during nut tightening without a back wrench
• Grade A steel construction meets ASTM A307 fastener standard
• Zinc-plated finish for basic corrosion resistance in dry or low-moisture environments

Compatibility

Designed as a standard inch-series carriage bolt compatible with 3/8-16 UNC nuts, washers, and threaded inserts used in general construction, mechanical, and utility fastening applications.

Installation Notes

Install using a standard wrench or socket on the mating nut. Ensure the square neck is fully seated into the material to prevent spinning before applying torque to the nut. For structural applications, consult applicable building codes to confirm fastener grade and size requirements. Zinc-plated hardware is not recommended for outdoor or high-moisture environments where a hot-dip galvanized or stainless fastener would be more appropriate.