Value Collection CAI50500350GN-025BX Carriage Bolt 1/2-13

Product Description

The VALUE COLLECTION CAI50500350GN-025BX is a 1/2-13 UNC carriage bolt with a 3-1/2 inch length under head, designed for structural fastening applications across construction, equipment assembly, and general fabrication work. Built from Grade 5 steel with a zinc galvanized finish, this bolt delivers solid corrosion resistance for both indoor and outdoor use. The square neck under the domed head locks into wood or pre-punched materials to prevent rotation during tightening, eliminating the need for a second wrench on the bolt side. This package contains 25 bolts, making it suitable for job-site quantities on larger projects or maintenance stock.

Carriage bolts in the 1/2-13 thread size are commonly used in timber framing, dock construction, equipment mounting, and utility trailer assembly. The UNC thread standard ensures broad nut and hardware compatibility. The zinc-plated galvanized finish provides a baseline level of corrosion protection appropriate for general outdoor exposure and light-duty treated lumber applications. Licensed contractors, carpenters, and general tradespeople typically use these bolts where through-bolting with a standard nut and washer is required.

Key Features

• 1/2-13 UNC thread size for wide nut and hardware compatibility
• 3-1/2 inch length under head suits medium-depth through-bolt applications
• Grade 5 steel construction provides reliable tensile strength for structural fastening
• Zinc galvanized finish adds corrosion resistance for outdoor and general-purpose use
• Square neck under domed head prevents bolt rotation during installation
• Sold in a pack of 25 for job-site or stocking quantities

Compatibility

Designed as a standard UNC carriage bolt compatible with 1/2-13 hex nuts, washers, and coupling nuts conforming to inch-system fastener standards.

Installation Notes

Installation is performed by passing the bolt through a pre-drilled hole and seating the square neck into the material to prevent spinning. Tighten using a standard wrench or socket on the nut side only — no tool is required on the bolt head. Follow applicable building codes and engineering specifications for structural connections, including torque requirements specified by the project engineer or applicable standards. Use appropriate washers under the nut to distribute load and protect material surfaces.