Value Collection 489130PS Carriage Bolt 1/2-13 8.5 in Grade 2

Product Description

The VALUE COLLECTION 489130PS is a 1/2-13 carriage bolt designed for through-bolt fastening applications in wood, metal, and structural assemblies. It features a domed head and a square neck that bites into the material surface to prevent rotation during tightening, eliminating the need for a wrench on the bolt end. The shank measures 8.5 inches in length under head with a 1/2-13 UNC thread form. Constructed from Grade 2 steel with a zinc-plated finish, this bolt meets ASTM A307 standards and is suited for general-purpose structural and construction fastening tasks performed by contractors, maintenance technicians, and tradespeople.

This carriage bolt is commonly used in wood framing, deck construction, equipment mounting, and general structural connections where a flush or low-profile bolt head is required on the finished face. The square neck seats into pre-drilled square holes or bites into wood to resist turning, making it straightforward to install with a single wrench or socket on the nut side. It is appropriate for indoor and outdoor applications where zinc plating provides basic corrosion resistance.

Key Features

• Square neck prevents bolt rotation during nut tightening without a second wrench
• 1/2-13 UNC thread form for broad nut and hardware compatibility
• 8.5-inch length under head suits deep through-bolt assemblies
• Grade 2 steel meets ASTM A307 standard for general structural fastening
• Zinc-plated finish provides basic corrosion and oxidation resistance

Compatibility

Designed as a general-purpose 1/2-13 UNC carriage bolt for use with standard 1/2-inch nuts, washers, and hardware in wood and light structural applications conforming to inch-standard dimensions.

Installation Notes

Installation is typically performed by carpenters, ironworkers, or general tradespeople using standard hand tools or impact drivers. A pre-drilled hole sized to the bolt shank is required; the square neck should seat fully into the material before applying torque to the nut. Always follow applicable structural codes and engineer specifications when using fasteners in load-bearing assemblies. Minimum order quantity for this item is 25 pieces.