Value Collection 489074PS Carriage Bolt 3/8-16 2in Square Neck

Product Description

The VALUE COLLECTION 489074PS is a 3/8-16 carriage bolt with a 2-inch length under head, manufactured from Grade 2 steel with a zinc-plated finish. The square neck beneath the domed head bites into wood or soft material as the nut is tightened, preventing the fastener from spinning during installation. Built to ASTM A307 standards, this bolt is suited for general-purpose structural and mechanical assembly applications. The zinc coating provides a basic layer of corrosion resistance for indoor and light-duty outdoor use. Installation requires no special tools beyond a standard wrench or socket applied to the nut side.

This carriage bolt is used in wood-to-wood and wood-to-metal connections in residential construction, fencing, decking, and general fabrication. The 3/8-16 UNC thread designation and inch-system sizing make it compatible with standard imperial hardware. It is commonly installed by carpenters, general contractors, and maintenance tradespeople in applications where a flush, tamper-resistant bolt head is required on the visible face of the assembly.

Key Features

• 3/8-16 UNC thread for compatibility with standard imperial nuts and hardware
• Square neck resists rotation during nut tightening without requiring a wrench on the bolt head
• Grade 2 steel construction meets ASTM A307 requirements for general-purpose fastener applications
• Zinc-plated finish provides basic corrosion resistance for indoor and light outdoor environments
• 2-inch length under head suits a range of light structural and assembly applications

Compatibility

Designed for general-purpose use with standard 3/8-16 UNC imperial nuts and washers in wood, composite, and light metal assembly applications.

Installation Notes

Installation is performed by inserting the bolt through a pre-drilled clearance hole and tightening a nut and washer from the threaded end. The square neck seats into the material surface to prevent rotation, so a wrench is applied only to the nut. Power down or de-energize any associated equipment before fastening near electrical components. Follow applicable building codes for structural connections.